12 Days of Christmas
30th
Arabic to Roman
72nd
Divisors
121st1,048th48th
Emirp Numbers
49th
Evil Numbers
1,109th58th
Fibonacci
192nd1,361st112th
Fizz Buzz
227th
101st
Happy Numbers
51st
Leap Years
55th
Morse Decoder
16th
Niven Numbers
53rd
Odious Numbers
54th
Pascal’s Triangle
57th
Pernicious Numbers
56th
Poker
9th
Prime Numbers
78th
Quine
75th
Spelling Numbers
78th