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A279133
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Number of nX7 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
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1
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15, 400, 7491, 129264, 2017028, 29410145, 409061044, 5488392521, 71618045798, 913912909445, 11451034651712, 141307143171540, 1721381619036321, 20738815798941668, 247471563012643095, 2928344313826748362
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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=4
..0..1..0..1..1..0..1. .0..1..0..1..0..1..1. .0..0..1..0..0..1..0
..1..1..1..0..0..0..1. .1..0..1..0..0..1..0. .1..1..0..0..1..0..1
..0..0..0..1..1..1..0. .0..1..1..0..0..1..0. .0..0..1..1..0..1..0
..0..1..0..1..0..0..1. .0..1..0..1..1..0..1. .1..0..1..0..0..1..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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