12 Days of Christmas
42nd
99 Bottles of Beer
39th
Arabic to Roman
22nd
Christmas Trees
53rd
Diamonds
37th
Divisors
39th
Emirp Numbers
113th
Evil Numbers
64th
Fibonacci
117th
Fizz Buzz
77th
Happy Numbers
57th
Leap Years
29th
Niven Numbers
42nd
Odious Numbers
60th
Pangram Grep
36th
Pascal’s Triangle
1st
Pernicious Numbers
94th
Prime Numbers
85th
Seven Segment
22nd