Abundant Numbers
657
Arabic to Roman
569
Divisors
763
Evil Numbers
726
Fibonacci
864
Fizz Buzz
750
Happy Numbers
488
Kolakoski Sequence
673
Leap Years
754
Niven Numbers
716
Odious Numbers
751
Ordinal Numbers
626
Pangram Grep
695
Pernicious Numbers
660
Prime Numbers
622
Quine
945
Recamán
721
Seven Segment
593
United States
Van Eck Sequence
709
π
305