A283041 Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element.

26, 3232, 175963, 8912378, 414085368, 18455711930, 797350288363, 33705434438284, 1401215705047092, 57496998569457406, 2334654228770351159, 93982808773859979206, 3756077506881552506247, 149195064747909416762172

Offset: 1

Author

R. H. Hardin, Feb 27 2017

Keywords

• nonn

Comments

Column 7 of A283042.

Examples

			Some solutions for n=3
..0..1..0..1..0..1..0. .0..0..0..1..0..0..1. .0..1..1..0..0..0..0
..0..1..1..0..1..0..1. .1..1..0..0..0..1..0. .0..1..0..0..0..0..0
..0..0..0..0..1..0..0. .0..0..1..0..1..1..1. .0..0..0..1..1..0..1
		

Links

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

Crossrefs

Cf. A283042.