12 Days of Christmas
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    37th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            24 Game
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    95th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            99 Bottles of Beer
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    25th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Abundant Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    360th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Abundant Numbers (Long)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    224th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Arabic to Roman
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    93rd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Arithmetic Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    128th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Arrows
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    219th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Ascending Primes
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    110th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            ASCII Table
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    52nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Billiards
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    72nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            brainfuck
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    125th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Card Number Validation
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    147th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Catalan Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    126th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Catalan’s Constant
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    46th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Christmas Trees
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    312th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Collatz
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    90th
                        
                    128th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    32nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            CSS Colors
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    17th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    34th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Cubes
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    209th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Day of Week
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    104th1st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            DFA Simulator
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    22nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Diamonds
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    79th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Divisors
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    220th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    359th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Emirp Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    167th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Emirp Numbers (Long)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    50th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Emojify
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    205th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Evil Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    1st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Evil Numbers (Long)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    35th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Factorial Factorisation
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    58th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Farey Sequence
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    134th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Fibonacci
            52nd53rd35th65th26th32nd59th11th95th80th38th14th4th42nd21st41st28th50th39th41st98th46th37th111th169th110th24th42nd109th
                        
                    155th28th117th99th74th13th31st
        
            Fizz Buzz
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    117th390th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    185th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    54th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Foo Fizz Buzz Bar
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    1st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Forsyth–Edwards Notation
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    53rd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Fractions
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    176th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Game of Life
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    49th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Gijswijt’s Sequence
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    36th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Happy Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    398th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Happy Numbers (Long)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    241st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Hexdump
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    57th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Intersection
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    60th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Inventory Sequence
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    74th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            ISBN
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    20th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    55th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Jacobi Symbol
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    134th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Kaprekar Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    79th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Kolakoski Constant
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    34th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Kolakoski Sequence
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    19th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Leap Years
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    168th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Levenshtein Distance
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    163rd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Leyland Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    199th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            ln 2
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    76th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Look and Say
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    67th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Lucky Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    213th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Lucky Tickets
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    58th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Mahjong
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    56th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Maze
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    86th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Medal Tally
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    42nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Morse Decoder
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    131st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Morse Encoder
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    85th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Musical Chords
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    85th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            N Queens
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    69th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Niven Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    355th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Niven Numbers (Long)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    178th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Number Spiral
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    55th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Odious Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    292nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Odious Numbers (Long)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    241st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Ordinal Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    365th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            PalindromemordnilaP
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    171st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Pangram Grep
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    53rd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Pascal’s Triangle
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    36th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    250th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Pernicious Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    154th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Pernicious Numbers (Long)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    152nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Poker
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    97th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Polyominoes
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    44th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Prime Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    448th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Prime Numbers (Long)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    207th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Proximity Grid
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    60th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            QR Decoder
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    36th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Quine
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    220th
                        
                    
                        
                    
                        
                    
                        
                    30th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    70th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Recamán
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    118th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Repeating Decimals
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    118th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Reverse Polish Notation
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    74th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Reversi
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    53rd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Rijndael S-box
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    50th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    52nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Rock-paper-scissors-Spock-lizard
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    112th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Roman to Arabic
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    81st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Rule 110
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    101st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Seven Segment
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    164th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            SI Units
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    58th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Sierpiński Triangle
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    105th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Smith Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    88th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Spelling Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    56th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Star Wars Opening Crawl
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    26th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Sudoku
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    109th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Sudoku (Fill-in)
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    81st
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Ten-pin Bowling
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    96th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Time Distance
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    36th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Tongue-twisters
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    79th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Transpose Sentence
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    94th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            United States
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    146th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Vampire Numbers
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    118th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Van Eck Sequence
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    88th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Zeckendorf Representation
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    50th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            Zodiac Signs
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    118th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            γ
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    20th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            λ
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    26th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            π
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    62nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    62nd
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            τ
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    65th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            φ
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    105th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            √2
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    124th
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
        
            𝑒
            
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    
                        
                    111th