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A318042
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Number of nX5 0..1 arrays with every element unequal to 0, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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1, 6, 86, 905, 10563, 116212, 1304057, 14683085, 165135266, 1856998899, 20884326520, 234874162302, 2641473216596, 29706814482309, 334092069568548, 3757304519668705, 42255828257649535, 475222320626098607
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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=5
..0..1..0..1..0. .0..1..0..1..0. .0..1..0..1..0. .0..0..0..1..0
..1..0..0..1..0. .1..0..0..1..0. .1..0..0..1..0. .0..0..1..0..1
..0..1..1..1..1. .0..1..0..1..1. .0..1..1..1..1. .0..1..1..0..1
..0..1..0..0..0. .1..1..0..0..0. .1..0..0..1..0. .1..1..0..0..0
..1..0..1..0..1. .0..0..1..0..1. .0..1..0..0..1. .0..0..1..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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