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A300610
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Number of nX6 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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5, 307, 7514, 164619, 3567928, 77669371, 1693172810, 36914891724, 804586936082, 17537173958121, 382249401338563, 8331719492001836, 181602790092449140, 3958314803988352629, 86277618337703468741, 1880554677657702819865
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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..0..0. .0..0..0..0..0..0. .0..0..0..0..0..0. .0..0..0..1..0..0
..0..1..1..1..1..1. .0..1..1..1..1..0. .0..1..1..1..1..1. .0..1..1..1..1..1
..0..0..0..0..0..0. .0..0..0..1..0..0. .0..0..0..1..0..1. .0..0..0..0..0..0
..0..1..1..1..1..0. .0..1..0..1..1..0. .0..1..0..1..0..1. .1..1..0..1..0..1
..1..0..0..1..1..0. .1..1..1..0..0..0. .0..1..1..1..1..1. .1..0..1..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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