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A306169
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Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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8, 53, 66, 249, 832, 1956, 5421, 15993, 42682, 118773, 341634, 940420, 2616566, 7413719, 20635659, 57534784, 161865923, 452342333, 1263392559, 3543306258, 9914165346, 27719300656, 77641186448, 217307212078, 607908389285
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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..1..1..1..1. .0..1..1..0..1
..1..0..0..0..0. .0..0..0..0..1. .1..1..1..1..1. .1..1..1..1..1
..1..1..0..0..0. .0..0..0..0..0. .1..1..1..1..1. .1..1..1..1..1
..0..0..0..0..0. .0..0..0..1..1. .0..1..1..1..0. .1..1..0..1..1
..1..0..0..0..0. .1..0..0..0..1. .0..0..1..1..1. .0..1..0..0..1
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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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