12 Days of Christmas
380
99 Bottles of Beer
372
Abundant Numbers
667
565
627
671
410
Christmas Trees
628
Diamonds
313
Divisors
700
947
Emirp Numbers
423
Evil Numbers
690
Fibonacci
517
900
Fizz Buzz
639
Happy Numbers
511
Morse Encoder
313
Niven Numbers
721
Odious Numbers
690
Pascalβs Triangle
625
Pernicious Numbers
635
Prime Numbers
541
Quine
816
Rock-paper-scissors-Spock-lizard
449
United States
201
Ξ»
102