The Seed of Life is the companion symbol to the larger flower of life, and consists of its central circles. It is also very potent, although it might have slightly different effects on the human psyche than the Flower of Life.
Drawn in Inkscape using a model found on yoga esoteric. So it is a vectorized version of a print. I actually don't know the mathematical formulas that could generate the original yantra, if exist.
You can scale at any size, but this version is designed to be printed on tabloid (11x17) format.