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A282855
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Number of n X n 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors.
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0
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2, 11, 131, 4163, 305430, 55930891, 25000646212, 27295999984619, 72988931277612942, 477182559947251724928, 7632223466274455982169083, 298610649015649904265150954293, 28578493893088208888472545213927279
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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..0..1..1. .0..0..0..1. .0..0..0..1. .0..0..0..0. .0..0..1..1
..1..0..0..0. .1..0..0..1. .0..0..0..1. .0..1..1..0. .0..0..0..0
..0..0..0..0. .0..1..0..0. .1..1..0..0. .0..0..0..0. .0..1..0..1
..0..0..1..1. .1..0..1..0. .0..0..0..1. .1..1..0..1. .1..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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