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A301397
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Number of nX5 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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0, 9, 44, 446, 4857, 49325, 521514, 5457161, 57311190, 601654211, 6316448607, 66317193844, 696258824443, 7310037380326, 76748138985060, 805779765484701, 8459893652740792, 88820547809627099, 932528264893178568
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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..0..1..1..1. .0..0..0..0..1. .0..0..1..1..1. .0..0..0..0..0
..0..1..0..1..1. .0..1..0..1..1. .0..1..1..1..0. .0..0..1..0..1
..1..0..0..1..0. .1..1..1..1..1. .0..0..0..0..0. .1..1..1..1..1
..1..1..0..0..0. .1..1..0..0..1. .0..1..1..0..0. .1..0..0..1..1
..1..1..0..0..0. .1..0..0..1..1. .1..1..1..0..0. .0..0..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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