12 Days of Christmas
707
99 Bottles of Beer
501
Abundant Numbers
594
Abundant Numbers (Long)
609
Arithmetic Numbers
611
Christmas Trees
384
Collatz
615
Diamonds
493
408
365
Divisors
624
Emirp Numbers
444
Emirp Numbers (Long)
473
Fibonacci
481
Fizz Buzz
637
620
Foo Fizz Buzz Bar
515
Intersection
521
ISBN
436
Leap Years
679
855
Leyland Numbers
359
Niven Numbers
482
Niven Numbers (Long)
595
Odious Numbers
285
Odious Numbers (Long)
283
Ordinal Numbers
386
Prime Numbers
479
Prime Numbers (Long)
491
Sierpiński Triangle
94