12 Days of Christmas
545
99 Bottles of Beer
523
Abundant Numbers
332
Christmas Trees
301
CSS Colors
237
Diamonds
243
Divisors
451
Emirp Numbers
Fibonacci
434
Fizz Buzz
459536412
Happy Numbers
238
Intersection
297
Leap Years
435
Morse Decoder
171
Morse Encoder
150
Niven Numbers
350
Prime Numbers
295
Seven Segment
206
Sierpiński Triangle
310
Tongue-twisters
591
United States
185