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A208368
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Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 0 vertically
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1
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42, 1764, 23010, 275769, 3759574, 47178453, 570085195, 6982331490, 85099853444, 1028266559100, 12425457898119, 150136148402568, 1811048511383583, 21834166758810375, 263223641419702766, 3172338713859879000
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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=4
..1..1..1..1..0..1..0....1..0..1..0..1..1..0....0..1..1..1..1..0..1
..1..0..1..1..0..1..0....1..1..0..1..1..0..0....1..1..0..1..0..1..0
..1..1..0..1..0..1..0....0..1..1..1..1..1..0....1..1..1..1..1..1..0
..0..1..0..1..0..1..0....1..1..1..1..0..1..0....1..0..1..1..1..0..0
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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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