12 Days of Christmas
415
99 Bottles of Beer
379
Abundant Numbers
729
Abundant Numbers (Long)
812
Arabic to Roman
485
Arithmetic Numbers
719
Ascending Primes
226
Catalan Numbers
701
Collatz
754
Divisors
933
Evil Numbers (Long)
799
Fibonacci
934
Fizz Buzz
862
Happy Numbers
567
Happy Numbers (Long)
630
ISBN
488
Prime Numbers
700