12 Days of Christmas
30th
Arabic to Roman
71st
Divisors
115th1,012th48th
Emirp Numbers
49th
Evil Numbers
1,060th58th
Fibonacci
184th1,300th110th
Fizz Buzz
223rd
97th
Happy Numbers
49th
Leap Years
55th
Morse Decoder
16th
Niven Numbers
52nd
Odious Numbers
53rd
Pascal’s Triangle
57th
Pernicious Numbers
54th
Poker
9th
Prime Numbers
76th
Quine
74th
Spelling Numbers
76th