12 Days of Christmas
28th
Arabic to Roman
72nd
Divisors
121st1,039th40th
Emirp Numbers
49th
Evil Numbers
1,108th58th
Fibonacci
192nd1,361st111th
Fizz Buzz
227th
96th
Happy Numbers
51st
Leap Years
54th
Morse Decoder
17th
Niven Numbers
52nd
Odious Numbers
54th
Pascal’s Triangle
57th
Pernicious Numbers
56th
Poker
9th
Prime Numbers
77th
Quine
75th
Spelling Numbers
78th