12 Days of Christmas
718
99 Bottles of Beer
559620667
Abundant Numbers
535
Christmas Trees
694
CSS Colors
171
Cubes
536
Divisors
529
Emirp Numbers
347
Evil Numbers
546
Fibonacci
456
Fizz Buzz
729
Fractions
314
Happy Numbers
486
Happy Numbers (Long)
434
Leap Years
499
Morse Decoder
302
Morse Encoder
319
Niven Numbers
619
Odious Numbers
544
Ordinal Numbers
517
Pangram Grep
491
Pascal’s Triangle
606
Pernicious Numbers
245
Prime Numbers
510
Seven Segment
287
Tongue-twisters
496
United States
159
π
211