12 Days of Christmas
745
Abundant Numbers
669
Abundant Numbers (Long)
694
Arabic to Roman
480
Arithmetic Numbers
634
Arrows
476
Ascending Primes
363
Christmas Trees
354
Collatz
753
Divisors
592
Evil Numbers
449
Evil Numbers (Long)
456
Fibonacci
364
Leap Years
462
Rock-paper-scissors-Spock-lizard
597