12 Days of Christmas
735
99 Bottles of Beer
698
Abundant Numbers
418
Arithmetic Numbers
695
Arrows
366
Christmas Trees
416
Collatz
850
CSS Colors
277
Divisors
905
Fibonacci
459
Fizz Buzz
718
592
712
ISBN
556
728
Leap Years
589
Maze
234
Niven Numbers
779681678600822352304575
733507565
Niven Numbers (Long)
873824760694872488340667
806551700
Pangram Grep
526
Pernicious Numbers
367
Prime Numbers
476
889
Quine
615905
Rijndael S-box
211
Seven Segment
429
SierpiΕski Triangle
453
Tongue-twisters
767
805
771683775
United States
256
Ο
328
β2
721