12 Days of Christmas
388
99 Bottles of Beer
372
Abundant Numbers
554
Abundant Numbers (Long)
597
Arithmetic Numbers
604
Christmas Trees
382
Collatz
604
Diamonds
490
405
362
Divisors
624
Emirp Numbers
355
Emirp Numbers (Long)
469
Fibonacci
470
Fizz Buzz
635
618
Foo Fizz Buzz Bar
510
Intersection
517
ISBN
333
Leap Years
678
854
Leyland Numbers
359
Niven Numbers
479
Niven Numbers (Long)
592
Odious Numbers
285
Odious Numbers (Long)
283
Ordinal Numbers
348
Prime Numbers
470
Prime Numbers (Long)
482
Sierpiński Triangle
125