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A302320
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Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
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1
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32, 360, 1528, 14022, 104932, 708572, 5542827, 41843808, 305929316, 2314491745, 17440443844, 130333059573, 980106473079, 7374359116006, 55398416906338, 416423087231831, 3131657192036482, 23549977524019022, 177066204746039879
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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..1. .0..1..0..0..1..1. .0..0..1..0..0..1. .0..1..1..0..1..0
..1..1..1..1..1..1. .1..1..1..0..0..1. .1..0..1..0..1..1. .0..0..1..1..0..0
..0..1..0..1..0..0. .1..0..1..0..1..0. .1..0..1..0..1..0. .1..0..1..0..0..1
..0..0..0..1..0..1. .1..0..1..0..1..0. .0..0..1..0..1..0. .1..0..1..0..1..0
..1..0..1..1..0..0. .0..0..0..0..1..0. .0..1..1..0..0..0. .0..0..1..1..1..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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