12 Days of Christmas
773
Abundant Numbers
675
Abundant Numbers (Long)
801
Collatz
676
Day of Week
467
Divisors
716
Emirp Numbers
523
Evil Numbers
665
Evil Numbers (Long)
653
Fibonacci
472
Fizz Buzz
373
Happy Numbers (Long)
507
Hexdump
460
ISBN
645
Leap Years
395
ln 2
741
Look and Say
445
Niven Numbers
499
Niven Numbers (Long)
549
Odious Numbers
662
Odious Numbers (Long)
651
PalindromemordnilaP
612
Pernicious Numbers
342
Tongue-twisters
528