A283955 - OEIS

A283955

Number of 6Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.

0, 0, 71486, 4510608, 242330064, 13010689912, 667015216686, 32960788748780, 1600697201681958, 76611709398415200, 3619757534989162198, 169346455636754049580, 7859113340842715699470, 362219493645285494837272

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

OFFSET

1,3

COMMENTS

Row 6 of A283950.

LINKS

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

EXAMPLE

Some solutions for n=3

..1..1..1. .1..1..0. .1..0..0. .1..1..1. .1..1..0. .0..0..1. .0..0..1

..0..1..1. .1..0..1. .0..0..0. .1..1..0. .1..0..1. .0..0..1. .0..0..1

..1..0..1. .1..1..1. .0..1..1. .0..0..1. .1..1..0. .0..1..1. .1..1..1