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A305774
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Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
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1
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32, 569, 4172, 38623, 362200, 3492739, 33891076, 329477646, 3206311981, 31221147593, 304079486283, 2961660465756, 28846996288795, 280978948410575, 2736828664561312, 26657663269633560, 259655448460324811
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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..1..0..0..0. .0..0..1..0..1..1. .0..1..1..1..0..0. .0..0..1..1..1..0
..0..0..0..0..1..0. .0..0..0..0..1..1. .0..0..1..1..1..0. .0..0..1..1..1..0
..0..0..0..0..1..0. .0..0..0..1..1..1. .0..1..1..1..1..1. .0..0..1..1..1..0
..0..1..1..0..0..0. .1..0..0..0..1..0. .0..0..1..1..0..0. .0..1..0..1..0..1
..0..0..0..0..0..1. .0..0..0..1..1..1. .1..0..1..1..0..0. .0..1..1..1..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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