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A205261
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Number of (n+2)X7 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..1 introduced in row major order
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1
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785920, 79391891, 8084022743, 820342090696, 83226275730613, 8445646803772751, 857047765548288466, 86969981709764397873, 8825400542834952782544, 895570902640916014256212, 90879395582208018048154556
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..0..1..1..1..0..0..1....0..0..0..1..1..0..0....0..1..1..1..0..0..1
..0..0..0..1..0..0..0....0..1..0..1..1..1..1....0..1..1..0..0..1..1
..1..1..1..1..1..0..0....1..0..1..1..0..0..1....1..0..1..0..0..1..0
..1..1..1..1..0..0..1....0..1..0..0..0..0..1....1..0..1..0..0..0..1
..1..1..1..0..0..1..0....1..0..0..0..1..0..1....0..0..1..0..1..1..1
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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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