12 Days of Christmas
336
99 Bottles of Beer
397
Abundant Numbers
395
Arithmetic Numbers
577
Arrows
328
Christmas Trees
357
Collatz
699
CSS Colors
117
Divisors
844
Fibonacci
444
Fizz Buzz
703
537
690
ISBN
532
552
Leap Years
580
Maze
166
Niven Numbers
715630399584721330293548
720421532
Niven Numbers (Long)
808697455667825450326626
787529648
Pangram Grep
434
Pernicious Numbers
359
Prime Numbers
278
872
Quine
615876
Rijndael S-box
142
Seven Segment
302
Sierpiński Triangle
420
Tongue-twisters
502
573
724391428
United States
179
π
287
√2
705