12 Days of Christmas
407
99 Bottles of Beer
293
Abundant Numbers
750618
543
536
Christmas Trees
500
Diamonds
312
Divisors
803861
590
768
Emirp Numbers
377
Evil Numbers
463
Fibonacci
485566
455
Fizz Buzz
766847977966713841
898588
Kolakoski Constant
71131
10462133
Leap Years
620
587
Niven Numbers
326
Odious Numbers
202
Prime Numbers
418
440
RecamΓ‘n
595
Ο
109