12 Days of Christmas
247
99 Bottles of Beer
134
Abundant Numbers
676
Catalan Numbers
331
Catalan’s Constant
59
Christmas Trees
452
Collatz
404
CSS Colors
79
Diamonds
292
Divisors
799
Emojify
263
Evil Numbers (Long)
752
Fizz Buzz
890
Foo Fizz Buzz Bar
851498
Fractions
372
Leap Years
681
Ordinal Numbers
533
Prime Numbers
632
Prime Numbers (Long)
648
Tongue-twisters
377