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A301449
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Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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64, 5536, 206266, 8414314, 346263718, 14319674594, 592006690060, 24472344492129, 1011614229196954, 41818633717956475, 1728717456235095132, 71462530065996111095, 2954149871798731848542, 122119977375690877476823
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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..0..0..1..1..0. .0..0..0..0..1..0..0. .0..0..0..0..0..0..1
..0..1..0..1..0..1..0. .0..1..0..1..1..1..1. .0..1..0..1..1..0..1
..0..0..1..0..1..0..0. .0..0..1..0..0..1..0. .0..0..1..0..1..1..1
..0..1..0..0..1..1..1. .0..1..0..1..1..0..1. .0..1..0..0..0..0..1
..0..0..1..0..0..1..0. .0..0..1..1..0..0..0. .0..0..1..1..1..0..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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