A283344 Number of nX5 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.

0, 120, 4398, 106310, 2519010, 55886238, 1199035122, 25121756412, 516765464924, 10481845883142, 210231077785162, 4177968654531772, 82397091799471253, 1614546135120979278, 31461824683588609937, 610146651185924046854

Offset

1,2

Comments

Column 5 of A283347.

Links

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

Example

Some solutions for n=4
..0..0..1..0..1. .0..1..0..1..1. .0..0..0..0..0. .1..0..0..0..0
..0..0..0..1..1. .0..0..0..1..0. .0..1..1..0..0. .0..0..1..0..1
..1..1..0..0..1. .1..0..1..0..0. .1..0..1..1..0. .1..1..0..1..0
..0..1..1..0..1. .1..1..0..1..1. .0..1..0..1..1. .0..1..1..0..0

Crossrefs

Cf. A283347.

Sequence in context: A055360 A001807 A111155 * A223754 A174686 A140907

Adjacent sequences: A283341 A283342 A283343 * A283345 A283346 A283347

Keyword

nonn

Author

R. H. Hardin, Mar 05 2017

Status

approved