12 Days of Christmas
861
99 Bottles of Beer
644
Abundant Numbers
728
Abundant Numbers (Long)
727
Arabic to Roman
468
Arithmetic Numbers
738
Christmas Trees
540
Collatz
836
Divisors
891
Emirp Numbers
472
Emirp Numbers (Long)
155
Emojify
421
Evil Numbers
818
Evil Numbers (Long)
800
Fibonacci
602
Fizz Buzz
929
Foo Fizz Buzz Bar
900
Happy Numbers
498
Happy Numbers (Long)
573
Leap Years
771
Look and Say
483
Lucky Numbers
541
Niven Numbers
677
Niven Numbers (Long)
741
Odious Numbers
852
Odious Numbers (Long)
831
Pascal’s Triangle
585
Pernicious Numbers
738
Pernicious Numbers (Long)
791
Tongue-twisters
708
Transpose Sentence
521
United States
807
Vampire Numbers
531