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A139683
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Number of n X n symmetric binary matrices with no row sum greater than 7.
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2
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1, 2, 8, 64, 1024, 32768, 2097152, 268435456, 66628946641, 29707592691510, 21634670753754060, 23709506474859569328, 36821021837919664452090, 77635187673471762914463552, 215313862348697780762374273824, 766493362781127793638943080523776
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OFFSET
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0,2
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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