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A304673
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Number of n X 5 0..1 arrays with every element unequal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
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1
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1, 26, 45, 199, 897, 3525, 15544, 68896, 310438, 1387613, 6186243, 27785689, 124415835, 557130770, 2496620845, 11189240404, 50135564778, 224656450818, 1006809534133, 4511766370308, 20218498784795, 90607032838312
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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..1..1..0. .0..1..1..0..0. .0..1..1..0..0. .0..0..0..1..1
..1..1..0..0..1. .0..1..1..0..0. .1..0..1..0..0. .1..1..1..0..0
..1..0..1..0..1. .0..1..1..0..0. .0..1..1..1..1. .0..1..0..0..0
..1..0..1..0..1. .0..1..1..0..0. .1..0..1..1..1. .1..1..1..0..0
..0..1..0..0..1. .0..1..1..0..0. .0..1..0..0..0. .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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