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A304900
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Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
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1
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8, 4184, 23101, 546357, 8143342, 132134627, 2256313057, 36576467823, 611064999079, 10097928834018, 167029611867699, 2768435464938330, 45799563014980397, 758446971924340233, 12555761237734510101
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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..1..1..0..1..0..1. .0..1..0..1..1..1..0. .0..1..1..0..1..0..1
..0..1..1..1..0..0..1. .0..1..0..0..1..1..0. .0..1..1..1..0..0..0
..0..0..1..0..0..0..0. .0..0..0..0..1..1..1. .0..0..1..1..0..0..1
..0..0..1..0..0..0..0. .0..0..0..1..1..0..1. .0..0..1..1..0..0..1
..0..1..1..1..0..0..1. .1..0..1..0..1..1..0. .0..1..1..1..0..0..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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