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A317229
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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64, 719, 4626, 29512, 575421, 7953354, 98315821, 1489532375, 21712800613, 306323777797, 4444079512911, 64413426395455, 927576853249191, 13402406215339043, 193764575657936363, 2798324709567542277
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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..0..0..0..0..1..1. .0..0..0..0..0..1..1. .0..0..0..0..0..0..1
..0..0..1..0..0..0..1. .0..0..1..0..0..1..1. .0..0..0..0..0..0..0
..0..0..0..0..0..0..0. .0..1..0..0..1..0..1. .0..0..1..0..0..0..0
..0..1..0..1..1..0..0. .0..0..0..0..0..1..1. .0..0..0..0..1..0..0
..0..0..1..0..0..0..1. .0..0..0..0..0..1..1. .1..0..0..0..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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