12 Days of Christmas
            507th
        
            Abundant Numbers
            200th
        
            Abundant Numbers (Long)
            179th
        
            Arithmetic Numbers
            141st
        
            Arrows
            168th
        
            Ascending Primes
            95th
        
            ASCII Table
            82nd
        
            Collatz
            194th
        
            Diamonds
            174th
        
            Divisors
            1st
        
            Emirp Numbers
            384th
        
            Evil Numbers
            388th
        
            Factorial Factorisation
            113th
        
            Fibonacci
            179th
        
            Fizz Buzz
            856th
        
            Foo Fizz Buzz Bar
            322nd
        
            Fractions
            176th
        
            Happy Numbers
            308th
        
            Morse Encoder
            141st
        
            Prime Numbers
            698th
        
            Prime Numbers (Long)
            367th
        
            Rule 110
            55th
        
            Tongue-twisters
            94th
        
            Zeckendorf Representation
            74th