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A278175
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Number of nX6 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.
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1
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0, 137, 4551, 205363, 9120939, 408355632, 18218081491, 813097394374, 36285966496008, 1619341940295084, 72266408849439553, 3225035964623559710, 143923783835527234449, 6422891413398861709329, 286634583241796971035956
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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=3
..0..1..1..1..0..1. .0..0..1..0..0..1. .0..0..0..1..1..1. .0..1..1..0..1..1
..0..0..0..0..1..1. .1..1..1..1..0..1. .1..1..0..0..0..0. .0..1..0..1..0..1
..1..1..1..0..0..1. .1..0..0..1..0..0. .0..0..0..1..1..1. .0..1..1..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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