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A283542
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Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors.
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1
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81, 1444, 42664, 1094959, 29377334, 778500603, 20707472573, 550220030803, 14624495679716, 388675661283840, 10330112591962531, 274548845582551728, 7296844499730463987, 193932365230917334017, 5154251053305056299587
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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 59 (see link above)
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EXAMPLE
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Some solutions for n=3
..0..0..1..1..0..0..1. .0..1..0..1..1..0..1. .0..1..0..1..0..0..0
..0..0..0..0..0..0..1. .0..1..0..0..0..0..0. .0..0..0..0..0..1..0
..0..0..0..0..0..0..1. .1..0..0..1..0..1..1. .0..1..0..0..0..0..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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