12 Days of Christmas
669
99 Bottles of Beer
679
Abundant Numbers
726
Christmas Trees
804
Cubes
496
Diamonds
469
Divisors
779
Emirp Numbers
536
Emojify
387
Evil Numbers
815
Fizz Buzz
780
Happy Numbers
552
Intersection
526
Leap Years
695
Leyland Numbers
314
Look and Say
621
Lucky Tickets
388
Morse Decoder
343
Morse Encoder
302
Niven Numbers
732
Odious Numbers
853
Ordinal Numbers
568
Pangram Grep
526
Pascal’s Triangle
617
Pernicious Numbers
846
Poker
796
Prime Numbers
586
Recamán
639
Rock-paper-scissors-Spock-lizard
466
Roman to Arabic
242
Rule 110
536
Seven Segment
608
Spelling Numbers
606
Tongue-twisters
502
United States
176