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A298132
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Number of nX7 0..1 arrays with every element equal to 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
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1
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0, 54, 826, 5782, 175014, 3752401, 76791444, 1706951987, 36185741209, 786733395586, 16992126182076, 366550521559787, 7927928295359425, 171260155001322160, 3700464812129655258, 79963026370989545009
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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..1..0..1..1..1. .0..0..1..1..0..0..0. .0..0..1..0..0..0..0
..0..1..0..1..0..1..1. .0..1..1..1..1..0..1. .0..1..0..1..1..1..0
..0..0..1..1..0..0..0. .0..0..0..0..0..1..1. .0..0..1..0..0..0..1
..1..0..1..0..1..0..1. .0..1..1..0..0..1..0. .1..0..1..1..1..0..1
..1..1..1..0..0..1..1. .1..1..1..1..1..0..0. .1..1..0..0..0..1..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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