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A281808
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Number of 7Xn 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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0, 400, 5191, 117401, 1770697, 28237876, 436154254, 6282549989, 91589152155, 1288443030127, 17891751065943, 246129086382234, 3333215777163938, 44817385604532614, 597117631739752174, 7892791183495285965
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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=4
..0..1..0..0. .0..0..0..0. .0..0..1..1. .0..0..0..0. .0..0..1..1
..1..0..0..0. .0..0..0..0. .0..0..1..1. .0..0..0..0. .0..1..0..1
..0..1..0..0. .0..0..1..1. .1..0..0..1. .0..0..0..0. .1..0..1..1
..0..0..0..0. .1..1..1..0. .1..1..0..0. .1..0..0..0. .0..1..1..0
..0..0..0..0. .1..1..0..0. .1..1..0..0. .1..0..0..0. .1..0..1..1
..1..1..0..0. .1..0..0..0. .1..1..0..0. .0..1..1..1. .0..1..0..0
..1..1..1..1. .0..1..1..1. .1..1..1..0. .0..0..1..1. .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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