12 Days of Christmas
383
99 Bottles of Beer
345
Abundant Numbers
657
Arabic to Roman
424
Christmas Trees
504
Diamonds
398
Divisors
674
Emirp Numbers
402
Emojify
409
Evil Numbers
713
Fibonacci
754
Fizz Buzz
491
Happy Numbers
170
Leap Years
621
Leyland Numbers
517
Look and Say
493
Morse Decoder
232
Morse Encoder
238
Niven Numbers
660
Odious Numbers
751
Ordinal Numbers
437
Pangram Grep
542
Pascal’s Triangle
335
Pernicious Numbers
608
Poker
298
Prime Numbers
490
Rock-paper-scissors-Spock-lizard
443
Roman to Arabic
436
Rule 110
290
Seven Segment
318
Sierpiński Triangle
326
Tongue-twisters
338
United States
199
Vampire Numbers
417