12 Days of Christmas
            405th
        
            99 Bottles of Beer
            585th
        
            Christmas Trees
            520th
        
            Emirp Numbers
            59th
        
            Fibonacci
            791st
        
            Fizz Buzz
            856th
        
            Happy Numbers
            55th
        
            Intersection
            210th
        
            Levenshtein Distance
            124th
        
            Leyland Numbers
            290th
        
            Look and Say
            235th
        
            Lucky Tickets
            127th
        
            Morse Decoder
            74th
        
            Morse Encoder
            41st
        
            Niven Numbers
            137th
        
            Odious Numbers
            475th
        
            Ordinal Numbers
            294th
        
            Pangram Grep
            359th
        
            Pascal’s Triangle
            282nd
        
            Pernicious Numbers
            217th
        
            Poker
            
                        
                    
        
            Quine
            70th
        
            Recamán
            118th
        
            Rock-paper-scissors-Spock-lizard
            67th
        
            Sierpiński Triangle
            221st
        
            United States
            147th
        
            Vampire Numbers
            192nd
        
            λ
            54th
        
            π
            146th
        
            τ
            124th
        
            φ
            170th
        
            √2
            217th
        
            𝑒
            146th