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A141051
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Number of symmetric n X n binary matrices with rows, considered as binary numbers, in strictly increasing order.
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0
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3, 9, 48, 438, 6774, 178263, 8064528, 635233629, 88262479353, 21895746114393, 9802094635734609, 7991530444822867188, 11958178763325581795193, 33058393812927903895526529, 169791780269023089222297799203, 1628050027945868401705569575523453
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OFFSET
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2,1
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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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STATUS
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approved
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