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A304477
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Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.
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1
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32, 184, 202, 869, 2870, 11079, 35462, 133597, 471114, 1710896, 6061565, 21980834, 78585187, 283683806, 1018847251, 3672874235, 13208879435, 47594094190, 171327070438, 617223088503, 2222719304061, 8007207853534, 28840761497354
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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..0. .0..1..1..1..1..1. .0..1..0..1..0..0. .0..1..1..1..0..1
..0..1..0..0..0..0. .0..1..1..1..1..1. .0..0..1..1..1..1. .0..1..1..1..1..0
..1..0..1..0..1..1. .1..1..1..1..1..1. .0..1..1..1..1..1. .0..0..1..1..1..1
..1..1..1..1..0..0. .0..1..1..1..1..1. .1..0..1..1..1..0. .0..1..0..1..1..1
..1..1..1..1..1..1. .1..0..1..0..0..1. .1..1..0..1..0..1. .1..0..0..0..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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