12 Days of Christmas
397
99 Bottles of Beer
368
Abundant Numbers
698
Abundant Numbers (Long)
654
Arabic to Roman
333
Arithmetic Numbers
637
Christmas Trees
470
Collatz
755
Divisors
844
Emirp Numbers
389
Emirp Numbers (Long)
129
Emojify
422
Evil Numbers
755
Evil Numbers (Long)
740
Fibonacci
602
Fizz Buzz
848
Foo Fizz Buzz Bar
715
Happy Numbers
386
Happy Numbers (Long)
486
Leap Years
770
Look and Say
388
Lucky Numbers
521
Niven Numbers
675
Niven Numbers (Long)
739
Odious Numbers
784
Odious Numbers (Long)
767
Pascal’s Triangle
530
Pernicious Numbers
686
Pernicious Numbers (Long)
730
Tongue-twisters
394
Transpose Sentence
413
United States
596
Vampire Numbers
391