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A283099 Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements. 1
13, 2458, 208949, 13563911, 774403237, 40737147156, 2028744947006, 97051820977159, 4503103658479576, 203960818891878775, 9059640264132416831, 395981104806526628656, 17074768173189616798859, 727813578716606158435457 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A283100.
LINKS
EXAMPLE
Some solutions for n=2
..1..1..1..0..1..0..1. .0..0..1..1..0..0..1. .1..1..0..0..1..0..0
..0..0..1..0..1..0..1. .1..1..0..1..0..1..1. .1..0..0..1..1..0..0
CROSSREFS
Cf. A283100.
Sequence in context: A301466 A229267 A350308 * A348817 A195537 A203692
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 28 2017
STATUS
approved

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Last modified May 28 04:02 EDT 2024. Contains 372900 sequences. (Running on oeis4.)