12 Days of Christmas
28th
Arabic to Roman
75th
Divisors
124th1,063rd41st
Emirp Numbers
49th
Evil Numbers
1,134th60th
Fibonacci
197th1,399th131st
Fizz Buzz
229th
98th
Happy Numbers
52nd
Leap Years
55th
Morse Decoder
18th
Niven Numbers
54th
Odious Numbers
54th
Pascal’s Triangle
58th
Pernicious Numbers
59th
Poker
9th
Prime Numbers
79th
Quine
77th
Spelling Numbers
83rd