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A306059
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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64, 432, 1344, 6955, 67791, 513811, 3363541, 25699369, 199805626, 1461477965, 10788085132, 81469649904, 609282707912, 4528672442297, 33855657682271, 253322029642768, 1890640721511027, 14116244272860371, 105494429560536925
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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=5
..0..1..0..0..0..1..0. .0..0..0..0..0..1..0. .0..1..1..1..1..0..0
..0..0..1..0..0..0..1. .1..0..0..0..0..1..0. .1..0..1..1..0..1..0
..0..0..0..0..0..0..0. .0..1..0..0..0..0..0. .1..1..1..1..0..1..0
..0..0..0..1..0..0..0. .0..0..1..0..0..1..0. .1..1..1..0..0..0..0
..0..0..0..1..0..0..0. .0..0..0..1..0..0..1. .0..0..1..1..1..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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