12 Days of Christmas
28th
Arabic to Roman
72nd
Divisors
118th1,023rd40th
Emirp Numbers
49th
Evil Numbers
1,090th58th
Fibonacci
190th1,343rd111th
Fizz Buzz
227th
95th
Happy Numbers
51st
Leap Years
54th
Morse Decoder
17th
Niven Numbers
52nd
Odious Numbers
53rd
Pascal’s Triangle
57th
Pernicious Numbers
56th
Poker
9th
Prime Numbers
77th
Quine
74th
Spelling Numbers
78th