Yet another Sierpinski gasket/triangle drawing program. This program works by drawing triangles recursively. That is, it starts by drawing the big outer triangle. It then draws 3 half size triangles inside that, 3 more inside each of those, and so on. The drawing of the Sierpinski triangle like this is usually characterized by placing solid triangles at each level (or clearing out a space in solid triangles). This script instead draws a line around the bounds of the triangles. As the fractal iterates to infinity, you get the same locus of points. (Or, at least I think you do. I don't have a proof of that. At any rate at the finite level of pixels you get the same result.)