12 Days of Christmas
416
99 Bottles of Beer
489
Abundant Numbers
634
578
Divisors
698
Emirp Numbers
197
Emojify
285
Fibonacci
620
Fizz Buzz
383510591548511513526614284445361618
Foo Fizz Buzz Bar
539
Leap Years
709
Niven Numbers
567
Odious Numbers
571
Ordinal Numbers
540
Pangram Grep
509
Pernicious Numbers
339
Prime Numbers
380
Prime Numbers (Long)
469
Tongue-twisters
323
United States