accidentally made ulam spiral in excel.

Can’t find the file but anyway, I had accidentally created https://en.wikipedia.org/wiki/Ulam_spiral – in Excel and was blown away at the patterns.  I just typed in 1, then 2 next to it, then I went up and typed 3 then left and type 5, and so on and so on.

I was so excited for a few minutes.  Then I looked it up “number spirals” and such ’til I came across the same pattern.

Oh well.. at least my brain was in good company.

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