We can now move forward to the 5 shell.  The same rules apply.

1.  The Reveal shell is 5×3×2×1=30.
2.  The next prime number is 7, so system works to 7^2=49.

When choosing the exclusion shells, you only require those that are wholly divisible into 30.  Numbers less than the prime being plotted (3 & 2 in this case) don’t need to be included either.  So for the 5 shell, the exclusion shells that make the reveal shell work are the 1, 5, 6, 10 & 15 shells.