12 Days of Christmas
336
99 Bottles of Beer
397
Abundant Numbers
395
Arithmetic Numbers
576
Arrows
328
Christmas Trees
356
Collatz
698
CSS Colors
117
Divisors
844
Fibonacci
444
Fizz Buzz
703
537
690
ISBN
531
552
Leap Years
580
Maze
165
Niven Numbers
714628404584720329293547
720420532
Niven Numbers (Long)
806693453667824448326625
787528646
Pangram Grep
434
Pernicious Numbers
359
Prime Numbers
278
872
Quine
602867
Rijndael S-box
145
Seven Segment
306
Sierpiński Triangle
420
Tongue-twisters
502
572
723391428
United States
179
π
287
√2
705