12 Days of Christmas
578
99 Bottles of Beer
457
Abundant Numbers
676
ASCII Table
426
Christmas Trees
529
CSS Colors
231
Evil Numbers
713
Fibonacci
485
Fizz Buzz
434
ISBN
473
Leap Years
716
Look and Say
444
Morse Encoder
297
Niven Numbers
728
Odious Numbers
610
Pangram Grep
642
Pernicious Numbers
414
Prime Numbers
632
Reverse Polish Notation
446
Rock-paper-scissors-Spock-lizard
486
Spelling Numbers
276
Tongue-twisters
474
United States
327
Vampire Numbers
140
Van Eck Sequence
429