[go: up one dir, main page]

login
A033177
Number of distinct distances between n electrons in minimal energy configuration on a sphere.
2
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
1,5
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
LINKS
R. H. Hardin, N. J. A. Sloane & W. D. Smith, Table of best configurations presently known, Feb 1994.
Wikipedia, Thomson Problem.
EXAMPLE
See Brown's web page in LINKS.
CROSSREFS
Sequence in context: A366409 A345082 A047993 * A175512 A240829 A284013
KEYWORD
more,nonn
AUTHOR
K. S. Brown (ksbrown(AT)seanet.com)
STATUS
approved