12 Days of Christmas
370
Abundant Numbers
650
Abundant Numbers (Long)
714
Collatz
613
Day of Week
373
Evil Numbers
665
Evil Numbers (Long)
654
Fibonacci
473
Fizz Buzz
341
Happy Numbers (Long)
432
Hexdump
313
ISBN
506
Leap Years
396
ln 2
730
Look and Say
364
Niven Numbers
502
Niven Numbers (Long)
553
Odious Numbers
664
Odious Numbers (Long)
652
PalindromemordnilaP
580
Pernicious Numbers
331
Tongue-twisters
299