12 Days of Christmas
398
Abundant Numbers
706
Abundant Numbers (Long)
773
Christmas Trees
575
Collatz
619
Divisors
649
Evil Numbers
784
Evil Numbers (Long)
767
Fibonacci
787
Fizz Buzz
890
Foo Fizz Buzz Bar
783
Leap Years
571
Niven Numbers
692
Niven Numbers (Long)
767
Odious Numbers
766
Odious Numbers (Long)
763
Prime Numbers
552
Prime Numbers (Long)
593