I was trying to think of this when I responded earlier, but the name would not come!
Fibonacci Sequence
This is a formula that some use for their quilts.
Here's a link ....
https://virtualquilter.wordpress.com...e-the-borders/
Personally, I have not used it .... and have opted, as per my earlier comments.
However, it does make sense to help give a starting point.
Interesting that the blog writer pretty much said the same thing
.... starting point and then audition it, adapting to what you like!