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A283537 Number of n X n 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors. 0
2, 11, 127, 4089, 282773, 49760703, 20707472573, 20600904514660, 49733650804666451, 286285861465088790415, 3974820937067425803238060, 132436400028311259382055434539, 10601199973430473477383046531697322 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A283543.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..1. .1..0..0..0. .1..0..1..0. .1..0..1..0. .0..0..0..0
..0..0..0..0. .1..0..0..1. .0..0..0..1. .0..0..0..0. .0..0..0..0
..1..0..0..0. .0..0..0..1. .0..0..0..0. .0..0..0..1. .0..0..1..0
..1..0..0..0. .1..0..1..0. .0..0..0..1. .0..0..0..0. .1..0..1..0
CROSSREFS
Cf. A283543.
Sequence in context: A077391 A104087 A208858 * A154596 A337458 A066382
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 10 2017
STATUS
approved

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Last modified May 28 00:20 EDT 2024. Contains 372900 sequences. (Running on oeis4.)