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A297462
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Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s.
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1
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64, 299, 6888, 55713, 862112, 8800153, 116817805, 1310421193, 16359022199, 190745746116, 2322860397083, 27514222405770, 331710789850250, 3954342819972111, 47479319283362042, 567478249014805267
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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 72 (see link above)
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EXAMPLE
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Some solutions for n=4
..0..0..0..1. .1..0..0..1. .1..0..0..0. .1..0..0..0. .0..0..1..0
..1..0..0..1. .0..0..0..0. .1..0..0..0. .0..0..0..0. .1..0..0..0
..0..0..0..1. .1..1..1..0. .1..0..0..0. .0..0..0..1. .1..0..0..0
..0..0..0..1. .0..1..0..0. .0..0..1..0. .0..0..0..0. .0..0..0..0
..0..1..0..1. .0..0..0..0. .0..0..0..0. .0..1..1..0. .1..1..0..0
..0..1..0..0. .0..0..1..0. .1..0..1..0. .0..1..1..0. .0..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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