12 Days of Christmas
559
99 Bottles of Beer
236
Abundant Numbers
718
Catalan Numbers
341
Catalan’s Constant
71
Christmas Trees
530
Collatz
511
CSS Colors
187
Diamonds
358
Divisors
877
Emojify
300
Evil Numbers (Long)
774
Fizz Buzz
983
Foo Fizz Buzz Bar
878638
Fractions
451
Leap Years
694
Ordinal Numbers
704
Prime Numbers
645
Prime Numbers (Long)
667
Tongue-twisters
684