What you're describing is the fractal Sierpinski pyramid :-) Picture: https://commons.wikimedia.org/wiki/File:Sierpinski_pyramid.png https://commons.wikimedia.

What you're describing is the fractal Sierpinski pyramid :-) Picture: https://commons.wikimedia.org/wiki/File:Sierpinski_pyramid.png https://commons.wikimedia.org/wiki/File:Sierpinski_pyramid.p...