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A186899
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Number of (n+1)X7 binary arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants
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1
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1832, 3106, 13894, 49303, 158437, 703983, 2920816, 12599670, 53255787, 237167117, 1038281562, 4647395617, 20681940139, 93309139005, 418804020410, 1894879906701, 8562258497610, 38852481809967, 176061963009807
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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 3X7
..1..1..0..1..0..0..0....1..0..0..1..0..1..0....0..1..1..1..0..0..1
..1..1..1..1..1..0..0....1..0..1..1..1..1..1....0..0..0..1..1..0..1
..0..0..1..0..1..0..0....1..0..1..0..1..0..1....0..1..1..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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