Fibonacci numbers follow the following sequence:
0 1 1 2 3 5 8 13 21 34 55 89 ….
Just add the first two values to get the third one, etc. I wanted to tell you this because it is cool to math/risk types. This number sequence was used in the Da Vinci Code to unlock a safe but the coolest use of this sequence is in the verse count (1, 1, 2, 3, 5, 8, 5, 3, 13, 8, 5, 3) to the song “Lateralus” by Tool.
[youtube=http://www.youtube.com/watch?v=wS7CZIJVxFY&fmt=18]