12 Days of Christmas
482
99 Bottles of Beer
456
Abundant Numbers
294
Christmas Trees
258
CSS Colors
134
Diamonds
207
Divisors
415
Emirp Numbers
Fibonacci
402
Fizz Buzz
436
520
407
Happy Numbers
218
Intersection
245
Leap Years
384
Morse Decoder
177
Morse Encoder
157
Niven Numbers
320
Prime Numbers
271
Seven Segment
174
Sierpiński Triangle
322
Tongue-twisters
539
United States
156