A033177 Number of distinct distances between n electrons in minimal energy configuration on a sphere.

0, 1, 1, 1, 3, 2, 4, 4, 6, 7, 20, 3, 28, 9, 21, 12, 14, 18, 52, 26, 69, 17, 48, 16, 160, 168

Offset: 1

Author

K. S. Brown (ksbrown(AT)seanet.com)

Keywords

• more
• nonn

Comments

Most of the higher terms of this sequence just refer to the best configurations known today.

How is this defined if the optimal configuration is not unique? - N. J. A. Sloane, Feb 27 2009

Examples

			See Brown's web page in LINKS.
		

Links

• K. S. Brown, Min-Energy Configurations of Electrons On A Sphere, MathPages.
• R. H. Hardin, N. J. A. Sloane & W. D. Smith, Table of best configurations presently known, Feb 1994.
• Wikipedia, Thomson Problem.

Crossrefs

Cf. A133491, A242617.