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A162030
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Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and all but the outermost 4 rows or columns zero
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1
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9471845, 370995866, 12256154479, 374124492162, 10495488465847, 271028317656933, 6466996667053452, 143211168475701734, 2956378703615485863, 57132980396982387053, 1037683143643901254026, 17777210671425885378565
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OFFSET
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8,1
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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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