12 Days of Christmas
19th
ASCII Table
32nd
16th
Fizz Buzz
70th
Foo Fizz Buzz Bar
367th
Happy Numbers
30th
640th
Leap Years
106th1,079th
ln 2
14th
Niven Numbers
40th86th
764th
Number Spiral
27th
13th
14th
Prime Numbers
59th100th
1,066th
Quine
84th
809th
Recamán
12th
Smith Numbers
8th
Tongue-twisters
27th
π
509th