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A185749
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Number of (n+1)X9 binary arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace
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1
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7528, 1494072, 148782184, 16318664224, 1793861476320, 197100662468008, 21671299631697840, 2382038434840423712, 261857186889698585032, 28785387230187042741928, 3164343356615626181734896
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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 3X9
..0..1..1..1..0..0..1..1..0....0..1..1..1..0..1..1..0..1
..0..1..1..1..0..0..0..1..1....0..1..1..1..1..1..1..1..1
..0..1..0..0..0..1..1..1..0....0..1..0..0..0..0..0..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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