Have you ever looked Ulam spiral? I find a lot of ideas in number theory to be magical - I would never have the talent for it professionally, but I know enough

Have you ever looked Ulam spiral? I find a lot of ideas in number theory to be magical - I would never have the talent for it professionally, but I know enough to appreciate the discoveries when they are explained to me. https://en.wikipedia.org/wiki/Ulam_spiral https://en.wikipedia.org/wiki/Ulam_spiral