12 Days of Christmas
276
99 Bottles of Beer
562
Abundant Numbers
467
Abundant Numbers (Long)
523
Christmas Trees
124
Divisors
490
608433
Emirp Numbers
265
Emirp Numbers (Long)
291
Evil Numbers
521
Evil Numbers (Long)
551
Fibonacci
291
447
Fizz Buzz
445577952894807
Foo Fizz Buzz Bar
344860851
Happy Numbers
401
Happy Numbers (Long)
573
Leap Years
346
457
Niven Numbers
569
Niven Numbers (Long)
663
Prime Numbers
516
Prime Numbers (Long)
526
λ
206