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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A283691.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

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

Adjacent sequences:  A283694 A283695 A283696 * A283698 A283699 A283700

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 14 2017

STATUS

approved

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Last modified June 18 10:09 EDT 2021. Contains 345098 sequences. (Running on oeis4.)