Abundant Numbers
671
Arabic to Roman
583
Divisors
794
Evil Numbers
741
Fibonacci
878
Fizz Buzz
757
Happy Numbers
500
Kolakoski Sequence
699
Leap Years
768
Niven Numbers
733
Odious Numbers
769
Ordinal Numbers
653
Pangram Grep
718
Pernicious Numbers
678
Prime Numbers
635
Quine
969
Recamán
743
Seven Segment
618
United States
Van Eck Sequence
736
π
312