%I
%S 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
%N Number of distinct distances between n electrons in minimal energy configuration on a sphere.
%C Most of the higher terms of this sequence just refer to the best configurations known today.
%C How is this defined if the optimal configuration is not unique?  _N. J. A. Sloane_, Feb 27 2009
%H K. S. Brown, <a href="http://www.mathpages.com/home/kmath005/kmath005.htm">MinEnergy Configurations of Electrons On A Sphere</a>, MathPages.
%H R. H. Hardin, N. J. A. Sloane & W. D. Smith, <a href="http://neilsloane.com/electrons/index.html">Table of best configurations presently known</a>, Feb 1994.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Thomson_problem">Thomson Problem</a>.
%e See Brown's web page in LINKS.
%Y Cf. A133491, A242617.
%K more,nonn
%O 1,5
%A K. S. Brown (ksbrown(AT)seanet.com)
