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A298628
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Number of n X 7 0..1 arrays with every element equal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
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1
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0, 104, 2880, 71334, 4228781, 193309200, 9557110072, 471778534219, 23254989974319, 1151387446628951, 56934303336591137, 2817505489516999198, 139419988171524739756, 6899299591626979177626, 341425278258241925272274
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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..1..0..0..0..0. .0..0..0..0..1..1..1. .0..1..1..0..1..1..1
..0..1..1..0..1..1..0. .0..1..1..0..1..1..0. .0..0..1..0..0..1..1
..0..0..1..0..1..1..1. .0..0..1..0..0..0..0. .0..1..1..1..1..1..1
..0..0..0..0..1..1..1. .0..0..0..0..1..0..1. .0..0..1..1..0..1..0
..0..0..0..0..0..1..1. .0..0..0..0..1..1..1. .0..0..0..0..1..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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