12 Days of Christmas
            349
        
            Abundant Numbers
            500
        
            ASCII Table
            242
        
            Catalan Numbers
            524
        
            Collatz
            600
        
            Divisors
            458
        
            Emirp Numbers
            470
        
            Evil Numbers
            615
        
            Evil Numbers (Long)
            603
        
            Fibonacci
            818
        
            Fizz Buzz
            582
        
            Foo Fizz Buzz Bar
            485
        
            ISBN
            300
        
            Leap Years
            434
        
            Leyland Numbers
            383
        
            Niven Numbers
            800
        
            Niven Numbers (Long)
            746
        
            Odious Numbers
            615
        
            Ordinal Numbers
            286
        
            Prime Numbers
            506
        
            Prime Numbers (Long)
            500
        
            Tongue-twisters
            287
        
            √2
            495