A283570 Number of nX6 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.

12, 908, 21186, 509952, 10919674, 226897932, 4558585174, 89724600000, 1736716820366, 33188681249924, 627668838247742, 11769603893466432, 219120313902873796, 4054721455598417092, 74638990577755174088

Offset: 1

Author

R. H. Hardin, Mar 11 2017

Keywords

• nonn

Comments

Column 6 of A283572.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 54

Crossrefs

Cf. A283572.

Formula

Empirical recurrence of order 54 (see link above)