12 Days of Christmas
381
99 Bottles of Beer
344
Abundant Numbers
521
Christmas Trees
636
Diamonds
190
Divisors
795
555
Emirp Numbers
213
Evil Numbers
324
Fibonacci
622
Fizz Buzz
382
420
673
413
679
704
692
447
581
435
577
567
565
446
417
623
529
680
Kolakoski Sequence
238
Leap Years
465
Niven Numbers
501
Odious Numbers
325
Pangram Grep
383
Pernicious Numbers
191
Prime Numbers
416
448
424
Sierpiński Triangle
117
Tongue-twisters
411
United States
92