12 Days of Christmas
743
99 Bottles of Beer
583
Abundant Numbers
666
Arabic to Roman
291
Christmas Trees
645
CSS Colors
211
Cubes
517
Diamonds
331
Divisors
734
Emirp Numbers
485
Evil Numbers
726
Fibonacci
701305787
Fizz Buzz
755
Happy Numbers
417
Leap Years
587
Levenshtein Distance
319
Look and Say
582
Morse Decoder
292
Morse Encoder
112
Niven Numbers
651
Odious Numbers
510
723
Ordinal Numbers
602
Pangram Grep
726
Pascal’s Triangle
547
Pernicious Numbers
660
Prime Numbers
426
545
Roman to Arabic
461
Seven Segment
492
Sierpiński Triangle
189
Tongue-twisters
543
United States
167