In the Fibonacci Series the first two are ones and each subsequent number is the sum of the previous two:
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, etc.
A Fibonacci spiral created by drawing circular arcs connecting the opposite corners of squares in the Fibonacci tiling.
This information has absolutely nothing to do with the cache location, but I thought you might like to know.
The cache is a small loc-n-loc hid in a typical way.