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A283548 Number of 7Xn 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors. 1
128, 2570, 54211, 1529463, 34266804, 854841910, 20707472573, 500387112083, 12194309578408, 295445669810158, 7175900498325835, 174194410958021304, 4227944315256983524, 102642336532085688286, 2491498898316960926393 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A283543.
LINKS
FORMULA
Empirical recurrence of order 69 (see link above)
EXAMPLE
Some solutions for n=3
..0..0..1. .0..0..1. .0..0..1. .0..1..0. .0..1..0. .0..1..0. .1..1..0
..0..0..0. .0..0..1. .0..0..1. .0..0..1. .0..0..1. .0..0..0. .0..0..0
..0..0..0. .0..0..1. .1..0..0. .1..0..1. .1..0..0. .0..0..0. .1..0..0
..0..0..1. .0..0..1. .0..0..0. .0..0..0. .1..0..0. .1..0..1. .1..0..0
..0..0..1. .0..0..0. .0..0..1. .1..0..0. .0..0..0. .1..0..0. .0..0..1
..0..0..0. .0..1..1. .0..0..0. .0..0..1. .1..0..0. .1..0..1. .0..0..1
..0..0..1. .0..0..0. .0..0..0. .0..0..1. .0..0..1. .0..0..0. .0..0..0
CROSSREFS
Cf. A283543.
Sequence in context: A096961 A231306 A236209 * A297687 A221662 A250282
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 10 2017
STATUS
approved

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Last modified May 25 12:29 EDT 2024. Contains 372788 sequences. (Running on oeis4.)