12 Days of Christmas
276
99 Bottles of Beer
561
Abundant Numbers
467
Abundant Numbers (Long)
523
Christmas Trees
124
Divisors
490
608433
Emirp Numbers
266
Emirp Numbers (Long)
291
Evil Numbers
521
Evil Numbers (Long)
553
Fibonacci
291
447
Fizz Buzz
446578952895808
Foo Fizz Buzz Bar
345863857
Happy Numbers
401
Happy Numbers (Long)
573
Leap Years
346
457
Niven Numbers
569
Niven Numbers (Long)
663
Prime Numbers
515
Prime Numbers (Long)
526
λ
206