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A183787
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Half the number of (n+1)X5 0..2 arrays with no 2X2 subblock having sum 4
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1
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10428, 948164, 84888699, 7635071835, 685721542209, 61615880574766, 5535599672278525, 497350558783784298, 44683911579501412754, 4014608234358287116731, 360689837976278213599877
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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 3X5
..0..0..0..2..1....0..0..0..2..1....0..0..0..2..2....0..0..0..2..1
..2..1..1..2..1....0..0..0..1..1....1..1..0..0..1....1..0..1..2..1
..2..1..2..0..2....0..2..1..0..0....2..1..0..2..2....0..2..2..2..2
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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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