If we create c as a product of multiple primes, can we control where each prime lands? And then, can we "wind" / "align" them all in the correct positions?
Let me nudge the rest of you another step into the light.
Our (x+n)^2 is comprised of 8 triangles + 1. What has VQC said? We have a recursive algorithm at hand?
If 225 = 8 * T(7) + 1, how many triangles fit inside of T(7)? How many triangles fit inside of T(u)?