12 Days of Christmas
372
Abundant Numbers
662
Abundant Numbers (Long)
733
Collatz
626
Day of Week
389
Evil Numbers
678
Evil Numbers (Long)
672
Fibonacci
480
Fizz Buzz
344
Happy Numbers (Long)
445
Hexdump
323
ISBN
522
Leap Years
402
ln 2
754
Look and Say
373
Niven Numbers
512
Niven Numbers (Long)
568
Odious Numbers
678
Odious Numbers (Long)
672
PalindromemordnilaP
607
Pernicious Numbers
339
Tongue-twisters
297