12 Days of Christmas
68699 Bottles of Beer
696Abundant Numbers
586Arabic to Roman
654Christmas Trees
478CSS Colors
117Cubes
342Diamonds
397Divisors
690
831Emirp Numbers
573Evil Numbers
568
753Fibonacci
840Fizz Buzz
545
364
688Happy Numbers
684Leap Years
783
745Leyland Numbers
122Morse Decoder
397Morse Encoder
457Niven Numbers
633Odious Numbers
562
725Ordinal Numbers
234Pangram Grep
366Pascal’s Triangle
168Pernicious Numbers
542Prime Numbers
586
846Quine
684Rock-paper-scissors-Spock-lizard
731Roman to Arabic
329Rule 110
18Seven Segment
383Sierpiński Triangle
484Tongue-twisters
646United States
278Vampire Numbers
212λ
256π
223τ
224φ
189√2
228𝑒
177