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A316617
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Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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1, 26, 29, 70, 189, 468, 1446, 3769, 11196, 32714, 93764, 279178, 822287, 2402170, 7095848, 20929687, 61595458, 181688654, 535849675, 1579611326, 4659075312, 13742067957, 40526906270, 119535724423, 352581261330, 1039940121804
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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..1..0..1..0. .0..1..0..0..1. .0..0..1..1..1. .0..1..0..0..1
..0..1..1..1..0. .0..1..1..0..1. .0..0..1..1..1. .1..0..1..1..0
..0..1..0..1..0. .0..0..1..0..1. .0..0..1..1..1. .1..1..0..0..1
..1..0..0..0..1. .0..1..1..1..1. .0..0..1..1..1. .1..0..1..1..0
..1..0..0..0..1. .0..1..0..1..0. .0..0..1..1..1. .1..0..0..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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