12 Days of Christmas
28th
Arabic to Roman
71st
Divisors
112th997th40th
Emirp Numbers
49th
Evil Numbers
1,051st58th
Fibonacci
184th1,290th108th
Fizz Buzz
221st
92nd
Happy Numbers
49th
Leap Years
54th
Morse Decoder
17th
Niven Numbers
51st
Odious Numbers
53rd
Pascalβs Triangle
57th
Pernicious Numbers
54th
Poker
9th
Prime Numbers
75th
Quine
74th
Spelling Numbers
76th