While we wait for VQC to turn up again, and since I have no ideas re PMA's current workings, does anyone want to speculate about >>5481 with me?

>You have to know which side to start with and which step to take.

>All we will end up doing with the next step is figuring out a pretty pattern with odd squares with a single unit hole in the middle.

>The symmetry is beautiful in the solution.

>When that symmetry cannot exist in more than one way, you have a neat way of spotting prime numbers.

The solution lies in taking what we currently have and somehow making a pattern out of the odd (x+n) squares that has something to do with symmetry. It also has something to do with f, d and (n-1). It's a kind of symmetry that can only exist in one way for the correct (x+n) in terms of its corresponding f, d and (n-1) values. What are we looking for here? Could it be related to >>5664 this?