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A186603
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Number of (n+4)X7 binary arrays with every 5X5 subblock commuting with each horizontal and vertical neighbor 5X5 subblock
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1
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11884, 916, 1566, 5813, 19840, 44120, 61336, 66332, 67552, 68580, 69616, 70680, 72140, 75248, 88073, 126738, 189047, 256748, 327317, 408631, 516821, 649719, 789469, 935195, 1104491, 1339328, 1661182, 2057589, 2530541, 3108377, 3859944
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OFFSET
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1,1
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COMMENTS
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Column 3 of A186609
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..154
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FORMULA
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Empirical: a(n)=a(n-1)+a(n-3)-a(n-4)+a(n-5)-a(n-6)-a(n-8)+a(n-9)+a(n-10)-a(n-13) for n>19
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EXAMPLE
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Some solutions for 6X7
..0..0..0..0..0..0..0....0..0..0..0..0..0..1....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....1..0..0..0..0..0..0....0..0..0..0..0..0..1
..0..0..0..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0
..0..0..1..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0
..0..1..1..0..0..0..0....1..0..0..0..0..0..0....0..0..0..0..0..0..0
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CROSSREFS
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Sequence in context: A258905 A232673 A342351 * A346027 A222800 A230680
Adjacent sequences: A186600 A186601 A186602 * A186604 A186605 A186606
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin Feb 24 2011
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STATUS
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approved
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