12 Days of Christmas
742
99 Bottles of Beer
597
Abundant Numbers
648
Arrows
489
Collatz
724
Emirp Numbers
439458
Evil Numbers (Long)
643
Fizz Buzz
736494
Foo Fizz Buzz Bar
748
Leap Years
641689752618730
Niven Numbers (Long)
805
Prime Numbers
577
Rock-paper-scissors-Spock-lizard
527
Sierpiński Triangle
98