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A139675 Number of n X n symmetric binary matrices with all row sums 8. +0
1
1, 2620, 8372754, 30649435140, 133475706272700 (list; graph; listen)
OFFSET

8,2

CROSSREFS

Sequence in context: A015309 A054258 A066871 this_sequence A020439 A002482 A107532

Adjacent sequences: A139672 A139673 A139674 this_sequence A139676 A139677 A139678

KEYWORD

nonn

AUTHOR

Ron Hardin (rhh(AT)cadence.com), Jun 12 2008

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.


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