A279131 Number of nX5 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

3, 87, 820, 6396, 47452, 316516, 2017028, 12376570, 73672888, 428568648, 2445310419, 13733337644, 76104228971, 416938845972, 2261749445562, 12163774256441, 64922115452637, 344182830696292, 1813720428133600

Offset: 1

Author

R. H. Hardin, Dec 06 2016

Keywords

• nonn

Comments

Column 5 of A279134.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..250
• R. H. Hardin, Empirical recurrence of order 88

Crossrefs

Cf. A279134.

Formula

Empirical recurrence of order 88 (see link above)