12 Days of Christmas
28th
Arabic to Roman
75th
Divisors
123rd1,059th41st
Emirp Numbers
49th
Evil Numbers
1,130th60th
Fibonacci
196th1,392nd129th
Fizz Buzz
230th
96th
Happy Numbers
51st
Leap Years
55th
Morse Decoder
17th
Niven Numbers
53rd
Odious Numbers
54th
Pascal’s Triangle
58th
Pernicious Numbers
59th
Poker
9th
Prime Numbers
79th
Quine
77th
Spelling Numbers
83rd