12 Days of Christmas
398
99 Bottles of Beer
560
Abundant Numbers
473
Abundant Numbers (Long)
531
Christmas Trees
125
Divisors
721
619443
Emirp Numbers
268
Emirp Numbers (Long)
297
Evil Numbers
523
Evil Numbers (Long)
550
Fibonacci
479
450
Fizz Buzz
446822955898809
Foo Fizz Buzz Bar
435862857
Happy Numbers
407
Happy Numbers (Long)
582
Leap Years
564
470
Niven Numbers
578
Niven Numbers (Long)
678
Prime Numbers
517
Prime Numbers (Long)
529
λ
205