12 Days of Christmas
365
Abundant Numbers
648
Abundant Numbers (Long)
711
Collatz
612
Day of Week
375
Divisors
665
Emirp Numbers
431
Evil Numbers
665
Evil Numbers (Long)
654
Fibonacci
472
Fizz Buzz
341
Happy Numbers (Long)
430
Hexdump
314
ISBN
504
Leap Years
395
ln 2
726
Look and Say
361
Niven Numbers
499
Niven Numbers (Long)
549
Odious Numbers
662
Odious Numbers (Long)
651
PalindromemordnilaP
497
Pernicious Numbers
341
Tongue-twisters
295