12 Days of Christmas
310
99 Bottles of Beer
366
Abundant Numbers
442
613
579Arabic to Roman
213
Christmas Trees
579
Divisors
684
538Emirp Numbers
447
Evil Numbers
519
Fibonacci
857
719Fizz Buzz
522
617
869
627Foo Fizz Buzz Bar
750
Happy Numbers
527
Happy Numbers (Long)
642
Leap Years
662
Leyland Numbers
481
Look and Say
472
Niven Numbers
815
Odious Numbers
519
Pernicious Numbers
388
Prime Numbers
702
Prime Numbers (Long)
759
RecamΓ‘n
567
Smith Numbers
444
Van Eck Sequence
402