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A259951
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Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00000101
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1
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4272, 34337, 438353, 2922457, 18564547, 159480543, 1328499316, 9776128436, 74163783119, 592385188191, 4627839825704, 35461188831863, 275231652348618, 2150568911134569, 16689842413232772, 129272181984273768
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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=2
..0..1..0..1..0..0..0..1..0....0..1..0..0..1..0..0..1..0
..0..0..1..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..0..0..1..0....0..0..0..0..0..1..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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