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A296586
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Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 3 neighboring 1s.
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1
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21, 480, 6241, 125765, 2607478, 52756072, 1109882746, 23359296497, 492457987101, 10402250973413, 219775565244891, 4644590743236824, 98165206674288770, 2074840058451866478, 43855171635171730011, 926958389641748039690
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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..0..1..0. .0..1..1..1..1..1. .0..1..0..0..1..0. .0..1..0..0..0..1
..1..1..0..0..0..1. .1..0..0..1..0..1. .0..0..0..0..0..0. .0..0..1..1..0..0
..1..0..0..0..0..0. .1..1..0..0..0..1. .0..0..0..0..0..1. .1..0..1..0..1..1
..0..0..0..1..0..0. .1..0..0..0..1..1. .1..0..0..0..0..0. .0..0..1..1..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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