12 Days of Christmas
487
99 Bottles of Beer
652
Abundant Numbers
608
Christmas Trees
800
Cubes
474
Diamonds
466
Divisors
780
Emirp Numbers
485
Emojify
278
Evil Numbers
817
Fizz Buzz
776
Happy Numbers
458
Intersection
526
Leap Years
695
Leyland Numbers
315
Look and Say
622
Lucky Tickets
388
Morse Decoder
336
Morse Encoder
289
Niven Numbers
710
Odious Numbers
855
Ordinal Numbers
563
Pangram Grep
526
Pascal’s Triangle
617
Pernicious Numbers
848
Poker
779
Prime Numbers
564
Recamán
638
Rock-paper-scissors-Spock-lizard
462
Roman to Arabic
239
Rule 110
534
Seven Segment
599
Spelling Numbers
606
Tongue-twisters
393
United States
174