12 Days of Christmas
555
99 Bottles of Beer
235
Abundant Numbers
707
Catalan Numbers
332
Catalanβs Constant
71
Christmas Trees
521
Collatz
500
CSS Colors
180
Diamonds
351
Divisors
863
Emojify
294
Evil Numbers (Long)
753
Fizz Buzz
976
Foo Fizz Buzz Bar
860
629
Fractions
436
Leap Years
683
Ordinal Numbers
686
Prime Numbers
633
Prime Numbers (Long)
648
Tongue-twisters
679