12 Days of Christmas
257
99 Bottles of Beer
135
Abundant Numbers
690
Catalan Numbers
341
Catalan’s Constant
60
Christmas Trees
462
Collatz
429
CSS Colors
82
Diamonds
299
Divisors
831
Emojify
269
Evil Numbers (Long)
774
Fizz Buzz
898
Foo Fizz Buzz Bar
878508
Fractions
383
Leap Years
694
Ordinal Numbers
574
Prime Numbers
645
Prime Numbers (Long)
667
Tongue-twisters
380