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A186604
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Number of (n+4)X8 binary arrays with every 5X5 subblock commuting with each horizontal and vertical neighbor 5X5 subblock
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1
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42120, 3455, 5813, 19248, 54040, 90664, 98376, 99820, 101072, 102332, 103620, 105172, 108332, 117492, 152956, 244561, 344142, 446775, 556660, 694109, 888987, 1093393, 1304011, 1531041, 1821099, 2260191, 2808392, 3465438, 4248781, 5232601
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OFFSET
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1,1
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COMMENTS
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Column 4 of A186609
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..117
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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>18
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EXAMPLE
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Some solutions for 6X8
..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..0..0..0..0..1....0..0..0..0..0..0..1..1
..0..0..0..0..0..0..1..1....1..0..0..0..0..0..1..1....1..0..0..0..0..0..1..1
..1..1..0..0..0..0..0..0....1..0..0..0..0..0..0..0....1..0..0..0..0..0..0..0
..1..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
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CROSSREFS
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Sequence in context: A258685 A031849 A151818 * A345154 A103155 A271749
Adjacent sequences: A186601 A186602 A186603 * A186605 A186606 A186607
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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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