12 Days of Christmas
50th
99 Bottles of Beer
52nd
Arabic to Roman
29th
Christmas Trees
66th
Diamonds
52nd
Divisors
51st
Emirp Numbers
39th
Evil Numbers
71st
Fibonacci
131st
Fizz Buzz
83rd
Happy Numbers
68th
Leap Years
34th
Niven Numbers
50th
Odious Numbers
68th
Pangram Grep
41st
Pascal’s Triangle
3rd
Pernicious Numbers
104th
Prime Numbers
94th
Seven Segment
31st