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A298579
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Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
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1
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3, 23, 47, 237, 765, 3284, 14482, 53272, 215514, 912084, 3648248, 14687047, 60203513, 245335061, 994616646, 4046916244, 16494072611, 67083379987, 272827461209, 1110711231219, 4520415462039, 18391763438584, 74846658443216
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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..1..0..0..1. .0..1..1..0..1. .0..1..1..1..0. .0..0..0..0..0
..0..1..1..1..1. .0..0..0..1..1. .1..0..0..0..1. .1..0..0..0..1
..0..1..1..0..0. .0..0..1..0..0. .1..0..0..0..1. .1..0..1..0..1
..0..1..1..1..1. .0..0..0..0..1. .0..1..0..0..1. .0..1..0..0..1
..0..1..0..0..1. .0..1..1..0..1. .0..1..0..1..0. .1..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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