12 Days of Christmas
868
99 Bottles of Beer
648
Abundant Numbers
739
Abundant Numbers (Long)
756
Arabic to Roman
481
Arithmetic Numbers
768
Christmas Trees
549
Collatz
919
Divisors
905
Emirp Numbers
489
Emirp Numbers (Long)
160
Emojify
429
Evil Numbers
769
Evil Numbers (Long)
759
Fibonacci
610
Fizz Buzz
935
Foo Fizz Buzz Bar
912
Happy Numbers
508
Happy Numbers (Long)
590
Leap Years
782
Look and Say
490
Lucky Numbers
557
Niven Numbers
688
Niven Numbers (Long)
758
Odious Numbers
800
Odious Numbers (Long)
788
Pascal’s Triangle
587
Pernicious Numbers
702
Pernicious Numbers (Long)
765
Tongue-twisters
713
Transpose Sentence
547
United States
831
Vampire Numbers
546