12 Days of Christmas
714
99 Bottles of Beer
692
Abundant Numbers
409
Arithmetic Numbers
663
Arrows
351
Christmas Trees
407
Collatz
769
CSS Colors
265
Divisors
886
Fibonacci
441
Fizz Buzz
699
586
688
ISBN
527
702
Leap Years
579
Maze
228
Niven Numbers
731616394578764323284538
716481526
Niven Numbers (Long)
807737472657798439312610
780514639
Pangram Grep
509
Pernicious Numbers
357
Prime Numbers
295
871
Quine
607870
Rijndael S-box
203
Seven Segment
409
Sierpiński Triangle
432
Tongue-twisters
751
778
754674767
United States
241
π
320
√2
700