|
|
A139675
|
|
Number of n X n symmetric binary matrices with all row sums 8.
|
|
3
|
|
|
1, 2620, 8372754, 30649435140, 133475706272700, 711040444591249476, 4686484162304929219950, 38295413179145036856212700, 386860001875783390762182911250, 4805622573099374975572752075805000, 72929153106385401417284439399165879652
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
8,2
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|