12 Days of Christmas
9th
99 Bottles of Beer
23rd
Abundant Numbers
8th
Arrows
18th
ASCII Table
15th
Christmas Trees
35th
CSS Colors
15th
Cubes
15th
Diamonds
8th
Divisors
14th
Evil Numbers (Long)
44th
Fibonacci
86th
Fizz Buzz
51st287th
Foo Fizz Buzz Bar
43rd
Happy Numbers
22nd
ISBN
12th
Look and Say
17th
Niven Numbers (Long)
44th
Number Spiral
12th
Poker
12th
Quine
1st
Reverse Polish Notation
8th
Rule 110
18th
Time Distance
12th
Zodiac Signs
13th