12 Days of Christmas
248
99 Bottles of Beer
134
Abundant Numbers
676
Catalan Numbers
331
Catalan’s Constant
59
Christmas Trees
452
Collatz
419
CSS Colors
79
Diamonds
292
Divisors
799
Emojify
262
Evil Numbers (Long)
752
Fizz Buzz
889
Foo Fizz Buzz Bar
850498
Fractions
372
Leap Years
681
Ordinal Numbers
550
Prime Numbers
632
Prime Numbers (Long)
648
Tongue-twisters
377