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A185989
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1/128 the number of (n+2)X7 binary arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace
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1
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876, 52966, 1739442, 64582504, 2340935640, 86146689788, 3151659956721, 115518814872268, 4232611015536753, 155094173345238861, 5682960561169751651, 208236239201648689372, 7630223129025671000970, 279587941557596275909471
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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 4X7
..0..1..1..1..1..1..0....0..1..0..0..0..1..0....0..0..1..1..1..0..0
..0..0..0..0..0..1..1....0..0..0..1..1..1..0....0..0..1..0..1..1..1
..0..0..0..0..0..1..0....0..0..0..1..1..1..1....0..0..0..1..1..1..1
..0..0..0..0..1..1..0....0..1..0..1..0..0..0....0..1..0..0..0..1..1
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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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