12 Days of Christmas
389
99 Bottles of Beer
574
Abundant Numbers
504
Abundant Numbers (Long)
524
Christmas Trees
124
Divisors
491
608457
Emirp Numbers
300
Emirp Numbers (Long)
292
Evil Numbers
521
Evil Numbers (Long)
551
Fibonacci
291
447
Fizz Buzz
445577952894883
Foo Fizz Buzz Bar
345862855
Happy Numbers
555
Happy Numbers (Long)
573
Leap Years
353
458
Niven Numbers
569
Niven Numbers (Long)
664
Prime Numbers
516
Prime Numbers (Long)
526
λ
491