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A261552
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Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001011.
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1
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652, 871, 1210, 816, 656, 1273, 1084, 855, 1036, 1259, 906, 967, 1868, 1421, 1174, 1872, 2062, 1490, 1414, 2701, 2106, 1737, 2594, 2660, 1956, 1979, 3720, 2663, 2258, 3851, 3776, 2770, 2630, 4948, 3568, 3023, 4994, 4687, 3466, 3399, 6362, 4345, 3746
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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: a(n) = 2*a(n-7) -2*a(n-21) +a(n-28) for n>34
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EXAMPLE
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Some solutions for n=4
..0..0..0..0..0..0..0....0..0..0..0..0..1..1....0..0..0..0..0..1..0
..1..0..0..0..0..1..0....0..1..0..0..1..0..0....1..1..0..0..1..0..0
..0..1..0..0..1..0..0....1..0..0..0..0..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....0..0..0..0..0..0..0....1..0..0..0..0..0..0
..0..0..0..0..0..0..0....1..0..0..1..0..0..1....0..1..0..0..1..0..0
..1..0..1..0..0..1..0....1..0..1..0..0..0..0....0..0..0..0..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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