Ilonka Squares
I was fascinated by the simplicity and irregularity of this painting, so off to GeoGebra.
s is the starting ring, n the number of rings, off is an angle offset from ring to ring, and add is how many additional squares each ring. You can put a function of x there. Simple, like 2x, or messed up stuff like 2+floor(x/2), or 3+round(3*sin(x)) or ...
