12 Days of Christmas
845
99 Bottles of Beer
604
Abundant Numbers
688
Arabic to Roman
593
Christmas Trees
581
Diamonds
479
Divisors
728
Emirp Numbers
497
Emojify
412
Evil Numbers
714
Fibonacci
755
Fizz Buzz
538
Happy Numbers
220
Leap Years
623
Leyland Numbers
611
Look and Say
609
Morse Decoder
338
Morse Encoder
354
Niven Numbers
666
Odious Numbers
753
Ordinal Numbers
544
Pangram Grep
642
Pascal’s Triangle
363
Pernicious Numbers
611
Poker
591
Prime Numbers
490
Rock-paper-scissors-Spock-lizard
655
Roman to Arabic
578
Rule 110
344
Seven Segment
444
Sierpiński Triangle
354
Tongue-twisters
608
United States
296
Vampire Numbers
571