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A281801
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Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal 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, 1631, 29665, 396185, 4480480, 45696162, 436154254, 3971817891, 34908793027, 298606378335, 2499056501051, 20543237322520, 166370690422967, 1330405801987723, 10523787698414884, 82464458555125786, 640879467060438623
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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..0..1..1..1. .0..0..0..0..0..0..0. .0..0..0..1..1..0..1
..1..0..0..1..1..1..1. .0..0..0..0..0..0..0. .0..0..1..1..1..0..0
..0..0..1..1..1..0..1. .1..1..1..0..1..1..1. .0..0..0..1..0..0..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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