12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
621548595659392
Christmas Trees
Diamonds
Divisors
Emirp Numbers
Evil Numbers
Fibonacci
491
Fizz Buzz
Happy Numbers
Morse Encoder
Niven Numbers
Odious Numbers
Pascalβs Triangle
Pernicious Numbers
Prime Numbers
Quine
Rock-paper-scissors-Spock-lizard
United States
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