The 2 Shell

Going back to the 2 shell, we see the same rules apply.
  1. The reveal shell is the product of the proceeding prime numbers, 2*1=2. Unusually this is the same as the prime shell.
  2. Skirt anticlockwise around the inside of the reveal shell, and the next prime number is 3, Figure 11.
  3. Square the next prime number, and you get the limit the system works to, 3^2=9, Figure 12.