12 Days of Christmas
34thCollatz
46thDivisors
122ndEvil Numbers
238thFibonacci
300thFizz Buzz
1stFoo Fizz Buzz Bar
39thHappy Numbers
66thHappy Numbers (Long)
32ndKolakoski Sequence
70thLeap Years
58thLeyland Numbers
33rdLook and Say
22ndNiven Numbers
100thPascal’s Triangle
59thPernicious Numbers
108thPrime Numbers
49thQuine
25thRecamán
53rdTongue-twisters
75th