12 Days of Christmas
846
99 Bottles of Beer
642
Abundant Numbers
724
Abundant Numbers (Long)
721
Arabic to Roman
467
Arithmetic Numbers
733
Christmas Trees
536
Collatz
831
Divisors
886
Emirp Numbers
471
Emirp Numbers (Long)
152
Emojify
419
Evil Numbers
817
Evil Numbers (Long)
797
Fibonacci
601
Fizz Buzz
926
Foo Fizz Buzz Bar
895
Happy Numbers
495
Happy Numbers (Long)
569
Leap Years
769
Look and Say
480
Lucky Numbers
535
Niven Numbers
671
Niven Numbers (Long)
732
Odious Numbers
849
Odious Numbers (Long)
827
Pascal’s Triangle
583
Pernicious Numbers
735
Pernicious Numbers (Long)
783
Tongue-twisters
706
Transpose Sentence
518
United States
802
Vampire Numbers
524