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A278155
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Number of nX6 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-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, 254, 11675, 571214, 28772962, 1459438050, 73654449669, 3717851037151, 187699707259842, 9476189368415446, 478407914745643442, 24152577356822109201, 1219351305393469653908, 61559372518202872739319
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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..0..0..0..1..1. .0..1..0..0..0..0. .0..0..1..1..1..0. .0..0..0..0..0..0
..1..1..1..1..1..0. .0..1..1..0..1..0. .1..0..1..0..1..0. .1..0..1..0..1..0
..0..0..1..1..0..0. .1..1..0..1..1..0. .1..0..1..0..1..0. .1..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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