12 Days of Christmas
47th
99 Bottles of Beer
49th
Arabic to Roman
25th
Christmas Trees
60th
Diamonds
42nd
Divisors
43rd
Emirp Numbers
36th
Evil Numbers
68th
Fibonacci
121st
Fizz Buzz
80th
Happy Numbers
63rd
Leap Years
30th
Niven Numbers
42nd
Odious Numbers
62nd
Pangram Grep
38th
Pascal’s Triangle
3rd
Pernicious Numbers
96th
Prime Numbers
88th
Seven Segment
26th