12 Days of Christmas
20th
Arabic to Roman
21st
Divisors
27th
Emirp Numbers
23rd
Emojify
10th
Evil Numbers
28th
Fibonacci
51st
Fizz Buzz
153rd
Happy Numbers
35th
Intersection
10th
Leap Years
45th
Niven Numbers
33rd
Odious Numbers
24th
Pascalβs Triangle
38th
Pernicious Numbers
30th
Prime Numbers
59th
Seven Segment
17th
Ο
38th