In Figure 20 I’ve worked the diagram out to the 113 shell, but instead of stopping the exclusion lines at the 113 shell, I’ve stopped them at double their number. In other words, the exclusion line of the 77 shell will extend to the 154 shell, the 113 shell to the 226 shell. This creates an interesting feathered effect in a halo around the main diagram which indicates to a degree where the pattern originates from. You will notice the fan effect is most pronounced around the 1 corridor, then the 2 corridor and so on. Is symmetry maintained in the horizontal plane?
Other patterns also emerge from the continuation of the shells to ever higher numbers. Figure 21 shows the diagram, with prime shells in red and the rest in green, extending as far as the 1013 shell. The corridors and exclusion lines are no longer discernible in this image, although other patterns appear to show through. I think it has artistic merit.