12 Days of Christmas
804
Abundant Numbers
678
Abundant Numbers (Long)
806
Collatz
731
Day of Week
465
Evil Numbers
665
Evil Numbers (Long)
655
Fibonacci
473
Fizz Buzz
374
Happy Numbers (Long)
510
Hexdump
467
ISBN
648
Leap Years
396
ln 2
744
Look and Say
447
Niven Numbers
503
Niven Numbers (Long)
555
Odious Numbers
664
Odious Numbers (Long)
653
PalindromemordnilaP
711
Pernicious Numbers
331
Tongue-twisters
530