12 Days of Christmas
877
99 Bottles of Beer
808
Abundant Numbers
787
Christmas Trees
553
CSS Colors
214550
Divisors
770
Emojify
Evil Numbers
639
Fibonacci
793
Fizz Buzz
844
Leap Years
807
Morse Encoder
381
Niven Numbers
635
Odious Numbers
639
Ordinal Numbers
665
Pangram Grep
768
Tongue-twisters
558
United States