12 Days of Christmas
841
99 Bottles of Beer
733
Abundant Numbers
778
Abundant Numbers (Long)
820
Arabic to Roman
629
Arithmetic Numbers
835
Collatz
814
Divisors
946
Emirp Numbers
422
Fibonacci
806
Fizz Buzz
973977846
Leap Years
866
Leyland Numbers
757
Niven Numbers
734931
Pascal’s Triangle
572
Pernicious Numbers
611
Prime Numbers
883
Prime Numbers (Long)
928
Van Eck Sequence
520
π
486