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A186605
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Number of (n+4)X9 binary arrays with every 5X5 subblock commuting with each horizontal and vertical neighbor 5X5 subblock
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1
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156276, 10882, 19840, 54040, 101080, 126344, 132040, 133484, 134936, 136416, 138160, 141124, 149504, 175064, 237212, 343672, 478073, 619334, 779227, 977188, 1221205, 1496127, 1786289, 2120643, 2555213, 3142299, 3894691, 4803584, 5916562
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OFFSET
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1,1
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COMMENTS
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Column 5 of A186609
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..90
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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 6X9
..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..1..1
..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..1....0..0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..0..1....1..1..0..0..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
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CROSSREFS
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Sequence in context: A177811 A341118 A129242 * A297060 A114658 A274364
Adjacent sequences: A186602 A186603 A186604 * A186606 A186607 A186608
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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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