12 Days of Christmas
251
99 Bottles of Beer
562
Abundant Numbers
467
Abundant Numbers (Long)
524
Christmas Trees
124
Divisors
491
608433
Emirp Numbers
266
Emirp Numbers (Long)
292
Evil Numbers
521
Evil Numbers (Long)
551
Fibonacci
291
447
Fizz Buzz
445577952894807
Foo Fizz Buzz Bar
344860852
Happy Numbers
401
Happy Numbers (Long)
573
Leap Years
347
457
Niven Numbers
569
Niven Numbers (Long)
664
Prime Numbers
516
Prime Numbers (Long)
526
λ
205