Abundant Numbers
684
Arabic to Roman
799
Divisors
821
Evil Numbers
726
Fibonacci
864
Fizz Buzz
820
Happy Numbers
629
Kolakoski Sequence
688
Leap Years
755
Niven Numbers
715
Odious Numbers
751
Ordinal Numbers
771
Pangram Grep
820
Pernicious Numbers
660
Prime Numbers
622
Quine
945
Recamán
799
Seven Segment
808
United States
Van Eck Sequence
749
π
341