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A183697
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Number of (n+1)X9 0..2 arrays with every 2X2 subblock nonsingular
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1
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19165418, 43352455562, 95843840904146, 213413389362873662, 474135214633449382230, 1054127029029754862576918, 2343065856411597861794635150, 5208444026905229671830632661366
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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 3X9
..1..0..1..1..0..2..2..2..2....1..0..1..1..0..1..2..1..2
..0..1..0..1..1..0..1..2..0....0..1..0..1..1..2..1..2..2
..1..0..1..0..2..1..0..2..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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