12 Days of Christmas
400
99 Bottles of Beer
371
Abundant Numbers
710
Abundant Numbers (Long)
671
Arabic to Roman
341
Arithmetic Numbers
653
Christmas Trees
478
Collatz
770
Divisors
857
Emirp Numbers
396
Emirp Numbers (Long)
132
Emojify
429
Evil Numbers
769
Evil Numbers (Long)
759
Fibonacci
610
Fizz Buzz
855
Foo Fizz Buzz Bar
725
Happy Numbers
393
Happy Numbers (Long)
500
Leap Years
782
Look and Say
397
Lucky Numbers
546
Niven Numbers
688
Niven Numbers (Long)
758
Odious Numbers
800
Odious Numbers (Long)
788
Pascalβs Triangle
543
Pernicious Numbers
702
Pernicious Numbers (Long)
750
Tongue-twisters
402
Transpose Sentence
434
United States
646
Vampire Numbers
402