A283385 - OEIS

A283385

Number of nX7 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.

0, 1734, 257416, 20788531, 1644385909, 120672330232, 8473366210380, 577497122717510, 38429377558548084, 2510034447031636894, 161474518006208921112, 10257528561081995711619, 644676948221905320696958

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OFFSET

1,2

COMMENTS

Column 7 of A283386.

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS