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A316807
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
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1
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64, 8192, 877309, 93109949, 9972851339, 1068884675914, 114545399709628, 12275005648997685, 1315428650403022308, 140965539170448058954, 15106316760832510128905, 1618841081133288189660930
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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..1..0..0. .0..0..0..0..0..1..1. .0..0..0..0..0..0..1
..0..0..0..0..1..0..0. .0..0..0..0..1..1..0. .0..0..0..1..1..1..0
..0..0..0..0..1..0..1. .0..0..0..1..1..1..0. .0..0..0..0..1..0..0
..0..0..0..0..0..1..0. .0..0..0..0..1..0..0. .0..0..0..0..0..0..1
..0..0..0..0..0..1..1. .0..0..0..1..1..0..1. .0..0..0..0..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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