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A316947
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Number of n X n 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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0, 7, 160, 18956, 8641499, 15440641209, 109086632521219, 3041266904462686586, 334635446051408230633599, 145323559617043972823631878181, 249082491936418607489659470348823605
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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..0..0..1..0. .0..0..0..1..0. .0..0..0..1..0. .0..0..0..1..0
..0..1..0..0..1. .0..1..0..1..0. .0..1..0..0..0. .0..1..0..1..0
..1..1..0..1..0. .1..0..1..0..1. .1..0..0..1..1. .1..1..1..1..1
..0..1..1..1..0. .0..1..1..1..0. .1..1..0..0..1. .1..0..0..0..0
..1..1..0..0..1. .1..0..0..0..1. .0..1..0..1..0. .0..1..0..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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