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A297676
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Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1's.
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0
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2, 11, 150, 4633, 401678, 78957968, 41030621948, 49892385650107, 157266548152111938, 1187668466030040777022, 22731639382952184172610914, 1058867886808501107531538859306
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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
..1..0..0..0. .0..0..0..0. .1..0..0..0. .0..1..0..1. .0..0..0..1
..1..0..0..1. .0..0..0..0. .0..0..0..0. .0..1..0..1. .0..1..0..0
..1..0..0..0. .0..0..0..1. .1..0..0..1. .0..0..0..0. .0..0..1..1
..0..0..1..0. .0..0..0..0. .1..0..0..0. .0..0..1..0. .0..1..0..1
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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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