12 Days of Christmas
548
99 Bottles of Beer
527
Abundant Numbers
332
Christmas Trees
306
CSS Colors
279
Diamonds
243
Divisors
476
Emirp Numbers
Fibonacci
443
Fizz Buzz
476536412
Happy Numbers
243
Intersection
300
Leap Years
435
Morse Decoder
173
Morse Encoder
151
Niven Numbers
358
Prime Numbers
303
Seven Segment
208
Sierpiński Triangle
314
Tongue-twisters
593
United States
185