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A140310
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Number of n X n binary matrices containing no more than seven 1s in any 3 X 3 sub-block.
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0
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1, 2, 16, 502, 61788, 29829353, 56365481377, 417452923577327, 12115365147171963168, 1377708150938828616858899, 613888995116283293759860580312, 1071847970096627711898648239726154442
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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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