OK, here is a starter theory

Just for grins, a simple starting point:

Protons like to hang about between quasars and heavy gravity L1 spots, where bubbles are small, they balance there.
Neutrons are happy right within the heavy gravity packs nulls, and
Negative protons hang north of that where bubbles are big, they balance there.

The next integer up is:

[(3/2)^108 * 3/2]^108 and

[(1/2+sqrt(5)/2)^91 * (1/2+sqrt(5)/2)]^91

If your computer goes that high.