SQ constant

The S$Q$ constant, properly called the sum of factorial square root reciprocals, is a constant believed to be important in the study of pilitron physics, specifically the study of spacetime. It is defined as:


 * $$S_Q = \sum_{n=1}^{\infty} \frac{1}{\sqrt{n!}}$$

The value of this constant, precise to 10 significant figures, is:


 * $$S_Q \approx 2.469506314$$

Importance
In the quantised space of pilitron physics, the vectors (1, 0, 1) and (1, 0, 0) would both have the length 1, which is incompatible with classical geometry. A constant that relates all square roots of factorials may therefore be useful in explaining the nature of quantised space.