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A139685 Number of n X n symmetric binary matrices with no row sum greater than 9. 0
1, 2, 8, 64, 1024, 32768, 2097152, 268435456, 68719476736, 35184372088832, 35680013894626133, 69256173251646457490, 241954801784975938299853 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A139682 A139683 A139684 * A006125 A193753 A006119

Adjacent sequences:  A139682 A139683 A139684 * A139686 A139687 A139688

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Jun 13 2008

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Last modified February 14 23:16 EST 2012. Contains 205687 sequences.