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A140309
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Number of n X n binary matrices containing no more than six 1s in any 3 X 3 sub-block.
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0
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1, 2, 16, 466, 51512, 21425198, 32840182186, 188637643581570, 4048457379398984078, 323937479341259299455434, 96758393657902322435446080112
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history;
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internal format)
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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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STATUS
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approved
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