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A185531
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Number of (n+2)X8 binary arrays with each 3X3 subblock nonsingular
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1
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219606, 5221098, 120202866, 2662736508, 60674682444, 1376360631638, 31056846439654, 703501386832854, 15929983279906354, 360373150531607944, 8156890014917199048, 184637748007156575022, 4178612067273729478560
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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 4X8
..0..0..1..1..0..1..0..1....0..0..1..0..0..1..1..0....0..0..1..1..0..1..0..1
..0..1..1..0..0..1..1..1....0..1..0..1..0..0..1..0....0..1..0..1..0..0..1..0
..1..1..0..0..1..1..0..0....1..1..1..0..1..0..0..1....1..1..1..0..1..1..1..0
..0..0..1..1..1..0..0..1....0..0..1..0..0..1..1..0....0..0..1..1..0..1..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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