12 Days of Christmas
370
Abundant Numbers
651
Abundant Numbers (Long)
715
Collatz
614
Day of Week
374
Evil Numbers
665
Evil Numbers (Long)
655
Fibonacci
473
Fizz Buzz
341
Happy Numbers (Long)
432
Hexdump
314
ISBN
507
Leap Years
396
ln 2
731
Look and Say
364
Niven Numbers
502
Niven Numbers (Long)
554
Odious Numbers
664
Odious Numbers (Long)
653
PalindromemordnilaP
581
Pernicious Numbers
331
Tongue-twisters
295