12 Days of Christmas
607
99 Bottles of Beer
830
Abundant Numbers
768
Arabic to Roman
641
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Christmas Trees
697
Collatz
879
Diamonds
620
Divisors
900
Emirp Numbers
711
Evil Numbers
817
Fibonacci
932539
Fizz Buzz
941
Happy Numbers
719
Morse Decoder
463
Morse Encoder
544
Odious Numbers
781
Pangram Grep
Pascal’s Triangle
833
Pernicious Numbers
721
Prime Numbers
740
Quine
962945
Recamán
845
Roman to Arabic
676
Seven Segment
701
Sierpiński Triangle
666
Spelling Numbers
United States