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A223103
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Number of nX7 0..2 arrays with exactly floor(nX7/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order
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1
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40, 86726, 82588214, 123093376161, 117100753812154, 184306007437994168, 178267875091681095647, 288566059811920090049247, 282038738466075495882497447, 464271472626735070305392948832
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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 n=3
..0..0..0..1..2..1..0....0..0..0..0..1..1..1....0..0..0..1..1..1..0
..0..0..0..1..0..1..2....0..0..1..0..1..0..1....0..0..0..2..1..2..1
..1..2..2..0..2..1..0....1..0..1..0..1..2..0....1..2..1..0..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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