12 Days of Christmas
890
99 Bottles of Beer
822
Abundant Numbers
795
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Christmas Trees
770
Cubes
595
Diamonds
656
Divisors
882
Emirp Numbers
492
Evil Numbers
676
Fibonacci
950702
Fizz Buzz
884
Lucky Tickets
Morse Decoder
417
Niven Numbers
906
Odious Numbers
680
Pangram Grep
753
Pernicious Numbers
513
Prime Numbers
711
United States
406
π
434
τ
427
φ
547
√2
516