99 Bottles of Beer
213
Abundant Numbers
524
Christmas Trees
597
Divisors
641
Emirp Numbers
360
Evil Numbers
524
Fibonacci
727522
498658
Fizz Buzz
559
Happy Numbers
274
Intersection
409
Kolakoski Sequence
478
Leap Years
572
Look and Say
366
Niven Numbers
591
Odious Numbers
522
Ordinal Numbers
397
Pangram Grep
Pascal’s Triangle
514
Pernicious Numbers
256
Poker
252
Prime Numbers
329
467449
Recamán
508
Rock-paper-scissors-Spock-lizard
391
Roman to Arabic
367
Seven Segment
202
Tongue-twisters
272
United States
171
Van Eck Sequence
502