Abundant Numbers
660
Arabic to Roman
570
Divisors
782
Evil Numbers
727
Fibonacci
866
Fizz Buzz
751
Happy Numbers
491
Kolakoski Sequence
675
Leap Years
756
Niven Numbers
720
Odious Numbers
753
Ordinal Numbers
637
Pangram Grep
699
Pernicious Numbers
663
Prime Numbers
623
Quine
946
Recamán
727
Seven Segment
604
United States
Van Eck Sequence
711
π
305