12 Days of Christmas
378
99 Bottles of Beer
345
Abundant Numbers
657
Arabic to Roman
423
Christmas Trees
503
Diamonds
398
Divisors
674
Emirp Numbers
402
Emojify
408
Evil Numbers
713
Fibonacci
754
Fizz Buzz
490
Happy Numbers
170
Leap Years
621
Leyland Numbers
517
Look and Say
493
Morse Decoder
232
Morse Encoder
238
Niven Numbers
661
Odious Numbers
751
Ordinal Numbers
436
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
325
Tongue-twisters
338
United States
199
Vampire Numbers
417