12 Days of Christmas
777
99 Bottles of Beer
589
Abundant Numbers
680
Arabic to Roman
300
Christmas Trees
660
CSS Colors
223
Cubes
550
Diamonds
340
Divisors
750
Emirp Numbers
504
Evil Numbers
741
Fibonacci
717318800
Fizz Buzz
763
Happy Numbers
428
Leap Years
597
Levenshtein Distance
332
Look and Say
602
Morse Decoder
301
Morse Encoder
117
Niven Numbers
667
Odious Numbers
529
741
Ordinal Numbers
628
Pangram Grep
750
Pascal’s Triangle
563
Pernicious Numbers
678
Prime Numbers
439
556
Roman to Arabic
478
Seven Segment
516
Sierpiński Triangle
201
Tongue-twisters
548
United States
189