12 Days of Christmas
394
Abundant Numbers
662
Abundant Numbers (Long)
683
Arabic to Roman
455
Arithmetic Numbers
625
Arrows
658
Ascending Primes
355
Christmas Trees
351
Collatz
733
Divisors
586
Evil Numbers
448
Evil Numbers (Long)
454
Fibonacci
362
Leap Years
448
Rock-paper-scissors-Spock-lizard
479