12 Days of Christmas
703
99 Bottles of Beer
726
Abundant Numbers
800
Christmas Trees
893
Cubes
559
Diamonds
526
Divisors
858
Emirp Numbers
601
Emojify
442
Evil Numbers
901
Fizz Buzz
834
Happy Numbers
615
Intersection
631
Leap Years
753
Leyland Numbers
364
Look and Say
708
Lucky Tickets
460
Morse Decoder
390
Morse Encoder
344
Niven Numbers
800
Odious Numbers
942
Ordinal Numbers
649
Pangram Grep
598
Pascal’s Triangle
661
Pernicious Numbers
932
Poker
973
Prime Numbers
655
Recamán
713
Rock-paper-scissors-Spock-lizard
530
Roman to Arabic
260
Rule 110
609
Seven Segment
683
Spelling Numbers
716
Tongue-twisters
569
United States
196