12 Days of Christmas
378
99 Bottles of Beer
369
Abundant Numbers
621
548
595
659
392
Christmas Trees
617
Diamonds
306
Divisors
673
932
Emirp Numbers
415
Evil Numbers
677
Fibonacci
491
888
Fizz Buzz
633
Happy Numbers
501
Morse Encoder
306
Niven Numbers
707
Odious Numbers
675
Pascalβs Triangle
609
Pernicious Numbers
620
Prime Numbers
530
Quine
796
Rock-paper-scissors-Spock-lizard
442
United States
197
Ξ»
99