12 Days of Christmas
776
99 Bottles of Beer
717
Abundant Numbers
771
Abundant Numbers (Long)
811
Arabic to Roman
630
Arithmetic Numbers
828
Collatz
809
Divisors
938
Emirp Numbers
420
Fibonacci
805
Fizz Buzz
942973841
Leap Years
807
Leyland Numbers
687
Niven Numbers
728917
Pascal’s Triangle
570
Pernicious Numbers
608
Prime Numbers
884
Prime Numbers (Long)
928
Van Eck Sequence
520
π
480