Abundant Numbers
            5th
        
            brainfuck
            17th
        
            Christmas Trees
            23rd
        
            Cubes
            8th
        
            Emirp Numbers
            21st
        
            Evil Numbers
            41st
        
            Fibonacci
            1st
        
            Fizz Buzz
            17th
        
            Intersection
            13th
        
            Leap Years
            62nd
        
            Niven Numbers
            54th
        
            Odious Numbers
            40th
        
            Ordinal Numbers
            30th
        
            Pascal’s Triangle
            11th
        
            Pernicious Numbers
            33rd
        
            Prime Numbers
            43rd
        
            United States
            14th