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A230336
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Number of nX7 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero
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1
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0, 56010, 46237080, 47762574418, 49266883333526, 50711260887195062, 52211092034409972862, 53754780288394583334632, 55344031582184062528770162, 56980280720646281897172731146, 58664905061647640259968339176114
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..0..0..0..2..1..1..0....0..0..2..0..1..0..0....0..0..0..1..1..0..2
..1..0..1..2..2..0..2....1..0..1..1..2..1..1....1..0..1..2..1..2..1
..2..0..0..2..1..0..2....2..0..0..1..0..0..2....2..0..0..2..1..2..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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