# Minimal-energy clusters of hard spheres

@article{Sloane1995MinimalenergyCO, title={Minimal-energy clusters of hard spheres}, author={N. J. A. Sloane and Ronald H. Hardin and Tom Duff and John H. Conway}, journal={Discrete \& Computational Geometry}, year={1995}, volume={14}, pages={237-259} }

What is the tightest packing ofN equal nonoverlapping spheres, in the sense of having minimal energy, i.e., smallest second moment about the centroid? The putatively optimal arrangements are described forN≤32. A number of new and interesting polyhedra arise.

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