12 Days of Christmas
41st
99 Bottles of Beer
42nd
Arabic to Roman
21st
Christmas Trees
53rd
Diamonds
37th
Divisors
39th
Emirp Numbers
112th
Evil Numbers
64th
Fibonacci
113th
Fizz Buzz
77th
Happy Numbers
56th
Leap Years
29th
Niven Numbers
41st
Odious Numbers
60th
Pangram Grep
36th
Pascal’s Triangle
1st
Pernicious Numbers
92nd
Prime Numbers
84th
Seven Segment
22nd