12 Days of Christmas
278th
Abundant Numbers
228th
Abundant Numbers (Long)
114th
Arabic to Roman
140th
Arithmetic Numbers
78th
Arrows
56th
Ascending Primes
46th
Christmas Trees
270th
Collatz
201st
Divisors
485th
Evil Numbers
357th
Evil Numbers (Long)
136th
Fibonacci
801st
Leap Years
447th
Rock-paper-scissors-Spock-lizard
87th