12 Days of Christmas
831
99 Bottles of Beer
595
Abundant Numbers
707
ASCII Table
539
Christmas Trees
610
CSS Colors
394
Evil Numbers
714
Fibonacci
486
Fizz Buzz
476
ISBN
607
Leap Years
718
Look and Say
549
Morse Encoder
433
Niven Numbers
733
Odious Numbers
612
Pangram Grep
761
Pernicious Numbers
416
Prime Numbers
633
Reverse Polish Notation
610
Rock-paper-scissors-Spock-lizard
713
Spelling Numbers
276
Tongue-twisters
553
United States
273
Vampire Numbers
63
Van Eck Sequence
454