12 Days of Christmas
603
99 Bottles of Beer
714
Abundant Numbers
743
Abundant Numbers (Long)
816
Arabic to Roman
629
Arithmetic Numbers
835
Collatz
811
Divisors
946
Emirp Numbers
320
Fibonacci
806
Fizz Buzz
784891843
Leap Years
865
Leyland Numbers
756
Niven Numbers
732925
Pascal’s Triangle
572
Pernicious Numbers
611
Prime Numbers
883
Prime Numbers (Long)
928
Van Eck Sequence
519
π
486