12 Days of Christmas
412
99 Bottles of Beer
580
Abundant Numbers
531
Abundant Numbers (Long)
536
Christmas Trees
126
Divisors
721
619467
Emirp Numbers
303
Emirp Numbers (Long)
297
Evil Numbers
523
Evil Numbers (Long)
550
Fibonacci
479
450
Fizz Buzz
448824957904886
Foo Fizz Buzz Bar
438869868
Happy Numbers
563
Happy Numbers (Long)
585
Leap Years
576
471
Niven Numbers
583
Niven Numbers (Long)
683
Prime Numbers
517
Prime Numbers (Long)
529
λ
491