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A231520
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Number of nX5 0..1 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors
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1
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12, 342, 4665, 70462, 1031105, 15000701, 219937967, 3222629836, 47159743290, 690399979855, 10108622083346, 147993608472149, 2166661772771563, 31720960292577983, 464409247083163776, 6799146031063407846
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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=4
..0..1..0..0..0....0..0..0..1..0....0..1..0..0..0....1..1..0..0..0
..1..0..1..1..1....0..0..0..0..1....0..0..0..1..1....0..0..1..1..0
..0..0..0..1..1....0..1..0..0..0....0..0..0..1..1....1..0..0..0..1
..0..0..0..1..1....0..0..1..1..1....1..0..0..1..1....1..1..0..1..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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