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A295376
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Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1s.
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1
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13, 120, 1067, 9507, 85310, 761795, 6819658, 60996884, 545729054, 4882126696, 43677489614, 390749347628, 3495770832651, 31274176146411, 279788295651612, 2503069579137149, 22393213414231715, 200336400920779459
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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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FORMULA
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Empirical recurrence of order 70 (see link above)
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EXAMPLE
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Some solutions for n=5
..0..0..1..0..0. .0..0..1..0..0. .1..0..0..1..0. .1..1..1..0..0
..0..0..0..0..1. .0..1..0..0..1. .0..0..0..0..0. .1..0..1..0..1
..1..1..0..0..0. .1..0..1..0..0. .1..0..0..1..1. .1..0..1..1..0
..1..1..0..0..0. .0..1..0..0..0. .0..0..0..1..1. .1..0..0..1..0
..0..0..0..0..1. .0..0..0..0..0. .0..0..0..0..0. .1..1..1..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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