OFFSET
0,3
LINKS
Wouter Meeussen, Excel spreadsheet
EXAMPLE
For 2 vertices, there are 5 different sets:
{10 pairs with norm^2 of sum = 0.000}
{30 pairs with 1.000}
{60, 2.618}
{60, 5.236}
{30, 6.854}
the norm^2 is taken with the side of the pentagons = 1.
And of course 10+30+60+60+30 = 190 = 20 choose 2
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Oct 06 2007, based on an email message from Wouter Meeussen on Dec 27 2004.
EXTENSIONS
More terms from Wouter Meeussen, Oct 07 2007
STATUS
approved