99 Bottles of Beer
375
Abundant Numbers
565
Christmas Trees
764
Divisors
687
Emirp Numbers
453
Evil Numbers
533
Fibonacci
758
532
515
667
Fizz Buzz
617
Happy Numbers
360
Intersection
578
Kolakoski Sequence
505
Leap Years
581
Look and Say
463
Niven Numbers
603
Odious Numbers
533
Ordinal Numbers
500
Pascal’s Triangle
568
Pernicious Numbers
261
Poker
501
Prime Numbers
346
476
512Recamán
585
Rock-paper-scissors-Spock-lizard
547
Roman to Arabic
500
Seven Segment
284
Tongue-twisters
493
United States
239
Van Eck Sequence
549