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A185529
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Number of (n+2)X6 binary arrays with each 3X3 subblock nonsingular
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1
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12630, 150234, 1752120, 19941490, 230731304, 2662736508, 30654215226, 353516027506, 4075790123584, 46978794076110, 541585913392016, 6243452389343254, 71973068584435804, 829701009878546566
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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 4X6
..0..1..1..0..0..1....0..0..1..1..1..1....0..1..0..0..1..0....1..1..1..1..0..0
..1..0..1..1..0..1....0..1..1..0..0..1....1..0..1..1..1..1....0..0..1..0..0..1
..0..1..0..0..1..0....1..1..1..1..0..0....1..0..0..1..1..0....1..0..0..1..1..1
..1..1..0..1..0..0....0..0..1..1..1..1....1..1..1..1..0..1....0..1..1..1..0..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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