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A283697
Number of 7Xn 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors.
1
128, 10329, 285770, 14754038, 726353972, 31815868749, 1496646288297, 69850963263086, 3221369052765009, 149740885820566547, 6952281674548007260, 322402225772561502269, 14963967565321593288677, 694424158390671052514851
OFFSET
1,1
COMMENTS
Row 7 of A283691.
LINKS
EXAMPLE
Some solutions for n=2
..0..1. .1..0. .0..0. .1..1. .1..0. .1..0. .0..0. .0..0. .0..1. .1..0
..1..1. .1..0. .1..0. .0..1. .1..0. .1..0. .0..1. .1..1. .1..0. .1..1
..1..0. .0..1. .0..0. .1..1. .0..1. .0..0. .1..0. .0..0. .0..0. .0..0
..0..0. .0..0. .0..0. .0..0. .0..0. .1..1. .1..0. .0..0. .0..1. .0..0
..0..1. .0..0. .1..1. .0..0. .1..1. .1..0. .0..0. .1..0. .1..0. .0..1
..0..1. .0..0. .0..1. .0..1. .0..1. .1..0. .1..1. .0..0. .1..1. .0..1
..1..1. .0..0. .1..0. .1..0. .1..0. .0..1. .1..0. .1..1. .0..0. .0..1
CROSSREFS
Cf. A283691.
Sequence in context: A181242 A035817 A297373 * A283129 A295715 A282398
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 14 2017
STATUS
approved