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A318014
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Number of n X 6 0..1 arrays with every element unequal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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32, 1178, 8971, 103633, 1033121, 10674882, 109443619, 1125607630, 11570430384, 118973283392, 1223232810942, 12577320454051, 129319715654055, 1329670047056784, 13671716973942909, 140573321698015550
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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..1..1..1. .0..0..1..1..1..1. .0..1..0..0..0..0. .0..0..0..1..0..0
..0..0..0..0..0..0. .0..1..1..1..1..0. .0..1..1..1..1..0. .0..0..1..1..0..0
..0..0..0..0..0..1. .0..1..1..0..0..0. .0..1..1..1..1..1. .0..0..1..1..0..0
..0..1..1..0..0..1. .0..0..0..0..0..0. .0..1..1..1..1..1. .0..1..1..0..0..0
..1..1..1..0..0..1. .0..1..1..0..1..1. .0..0..1..1..1..1. .1..0..0..0..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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