Aud
After some more research...
Tetragrammaton is defined as:
"It is a kabalistical term and corresponds on a more material plane to the sacred Pythagorean Tetraktys."
Then I found this...
The Pythagorean Science of Numbers
Read it all the way through. It will blow your mind.
It mentions the different structures of philosophical number theory, as well as a significant mention for how it can be misconstrued to mean everything to a Holy Trinity to a single God above all else.