12 Days of Christmas
507
99 Bottles of Beer
474
Abundant Numbers
296
Christmas Trees
259
CSS Colors
195
Diamonds
207
Divisors
395
Emirp Numbers
Fibonacci
395
Fizz Buzz
421366406
Happy Numbers
214
Intersection
244
Leap Years
388
Morse Decoder
142
Morse Encoder
127
Niven Numbers
315
Prime Numbers
267
Seven Segment
172
Sierpiński Triangle
265
Tongue-twisters
562
United States
159