12 Days of Christmas
            812
                        
                    
                        
                    
        
            99 Bottles of Beer
            496
                        
                    629
        
            Abundant Numbers
            
                        
                    
                        
                    849
        
            Abundant Numbers (Long)
            
                        
                    
                        
                    908
        
            Arabic to Roman
            311
                        
                    708
        
            Arithmetic Numbers
            
                        
                    
                        
                    815
        
            Arrows
            
                        
                    
                        
                    443
        
            ASCII Table
            
                        
                    
                        
                    790
        
            brainfuck
            555
                        
                    
                        
                    
        
            Catalan Numbers
            
                        
                    63881
        
            Catalan’s Constant
            148
                        
                    199
        
            Christmas Trees
            
                        
                    
                        
                    730
        
            Collatz
            
                        
                    
                        
                    854
        
            CSS Colors
            
                        
                    
                        
                    254
        
            Cubes
            
                        
                    
                        
                    626
        
            Diamonds
            560
                        
                    
                        
                    
        
            Divisors
            778
                        
                    987
        
            Emirp Numbers
            
                        
                    
                        
                    687
        
            Emirp Numbers (Long)
            
                        
                    
                        
                    663
        
            Emojify
            
                        
                    
                        
                    453
        
            Evil Numbers
            
                        
                    
                        
                    836
        
            Evil Numbers (Long)
            
                        
                    
                        
                    871
        
            Factorial Factorisation
            
                        
                    
                        
                    141
        
            Fibonacci
            863
                        
                    842
        
            Fizz Buzz
            879
                        
                    777
        
            Foo Fizz Buzz Bar
            759
                        
                    694
        
            Fractions
            608
                        
                    642
        
            Gijswijt’s Sequence
            
                        
                    
                        
                    65
        
            Happy Numbers
            
                        
                    
                        
                    626
        
            Happy Numbers (Long)
            
                        
                    
                        
                    736
        
            Hexdump
            
                        
                    
                        
                    635
        
            Intersection
            
                        
                    
                        
                    827
        
            Inventory Sequence
            
                        
                    
                        
                    36
        
            ISBN
            
                        
                    
                        
                    657
        
            Kolakoski Constant
            
                        
                    
                        
                    175
        
            Kolakoski Sequence
            757
                        
                    
                        
                    
        
            Leap Years
            
                        
                    
                        
                    812
        
            Leyland Numbers
            
                        
                    
                        
                    754
        
            Look and Say
            556
                        
                    646
        
            Lucky Numbers
            
                        
                    
                        
                    578
        
            Niven Numbers
            756
                        
                    847
        
            Niven Numbers (Long)
            
                        
                    
                        
                    917
        
            Number Spiral
            
                        
                    
                        
                    381
        
            Odious Numbers
            711
                        
                    866
        
            Odious Numbers (Long)
            
                        
                    
                        
                    871
        
            Ordinal Numbers
            686
                        
                    
                        
                    
        
            Pangram Grep
            
                        
                    
                        
                    766
        
            Pascal’s Triangle
            104
                        
                    536
        
            Pernicious Numbers
            663
                        
                    705
        
            Pernicious Numbers (Long)
            
                        
                    
                        
                    822
        
            Prime Numbers
            709
                        
                    924
        
            Prime Numbers (Long)
            664
                        
                    985
        
            Proximity Grid
            
                        
                    
                        
                    273
        
            Quine
            
                        
                    
                        
                    672
        
            Recamán
            
                        
                    
                        
                    676
        
            Repeating Decimals
            
                        
                    
                        
                    497
        
            Reverse Polish Notation
            
                        
                    
                        
                    805
        
            Rock-paper-scissors-Spock-lizard
            
                        
                    
                        
                    339
        
            Roman to Arabic
            560
                        
                    
                        
                    
        
            Rule 110
            
                        
                    
                        
                    484
        
            Seven Segment
            
                        
                    
                        
                    376
        
            Sierpiński Triangle
            
                        
                    
                        
                    278
        
            Smith Numbers
            
                        
                    
                        
                    457
        
            Spelling Numbers
            796
                        
                    
                        
                    
        
            Sudoku
            
                        
                    
                        
                    353
        
            Tongue-twisters
            542
                        
                    806
        
            United States
            
                        
                    
                        
                    244
        
            Vampire Numbers
            
                        
                    
                        
                    272
        
            Van Eck Sequence
            642
                        
                    589
        
            λ
            300
                        
                    348
        
            π
            125
                        
                    150
        
            τ
            125
                        
                    150
        
            φ
            112
                        
                    154
        
            √2
            109690145
        
            𝑒
            106
                        
                    111