12 Days of Christmas
28th
Arabic to Roman
78th
Divisors
125th1,069th41st
Emirp Numbers
49th
Evil Numbers
1,137th61st
Fibonacci
199th1,406th130th
Fizz Buzz
231st
98th
Happy Numbers
52nd
Leap Years
56th
Morse Decoder
17th
Niven Numbers
54th
Odious Numbers
54th
Pascal’s Triangle
58th
Pernicious Numbers
59th
Poker
13th
Prime Numbers
80th
Quine
77th
Spelling Numbers
89th