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A326099
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Number of nXn 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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0
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1, 8, 161, 8628, 1233763, 463572941, 457515856087, 1187662505828132, 8109848158608706092, 145652282125715208618002, 6879822326742091298103753274
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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=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..1
..1..0..1..1..1. .1..1..0..1..1. .1..0..1..0..1. .0..1..1..1..0
..1..0..0..0..1. .1..0..1..0..1. .1..1..0..1..0. .0..1..0..0..0
..1..1..0..1..0. .1..1..1..0..1. .1..0..0..1..1. .1..0..1..1..1
..1..1..0..1..0. .0..0..0..0..1. .1..1..0..1..1. .0..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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