12 Days of Christmas
9th
99 Bottles of Beer
22nd
Abundant Numbers
8th
Arrows
17th
ASCII Table
15th
Christmas Trees
35th
CSS Colors
15th
Cubes
14th
Diamonds
8th
Divisors
14th
Evil Numbers (Long)
42nd
Fibonacci
84th
Fizz Buzz
50th283rd
Foo Fizz Buzz Bar
41st
Happy Numbers
22nd
ISBN
12th
Look and Say
16th
Niven Numbers (Long)
40th
Number Spiral
12th
Poker
11th
Quine
1st
Reverse Polish Notation
8th
Rule 110
18th
Time Distance
12th
Zodiac Signs
13th