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A298176
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Number of nX7 0..1 arrays with every element equal to 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
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1
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0, 22, 8, 43, 73, 161, 181, 540, 1076, 2572, 5179, 11814, 27638, 63592, 145715, 332492, 772416, 1792330, 4152863, 9615009, 22287060, 51774292, 120261321, 279370852, 649021245, 1508490144, 3507212748, 8154848055, 18962917850, 44099995183
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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=7
..0..0..1..1..1..1..1. .0..0..1..0..1..1..1. .0..0..0..1..0..0..0
..0..1..0..0..0..0..1. .0..1..0..1..0..0..1. .1..0..1..0..1..1..0
..0..1..0..1..1..1..0. .0..1..0..1..0..1..0. .1..1..1..0..1..0..1
..0..1..0..1..0..0..1. .0..1..0..1..0..1..0. .1..0..1..0..0..0..1
..0..1..0..1..0..1..1. .0..1..0..1..0..1..0. .0..0..1..0..1..0..1
..1..0..0..1..0..1..0. .0..1..0..1..0..0..1. .1..0..1..0..1..1..0
..1..1..1..0..1..0..0. .0..0..1..0..1..1..1. .1..1..0..1..0..0..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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