A283577 Number of 6Xn 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.

0, 924, 36038, 528436, 12699250, 226897932, 4173039716, 75680334636, 1325245534158, 23188665136084, 399584953679136, 6833558444087984, 116073651385176490, 1958677669677212976, 32888238393714753228

Offset: 1

Author

R. H. Hardin, Mar 11 2017

Keywords

• nonn

Comments

Row 6 of A283572.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 64

Crossrefs

Cf. A283572.

Formula

Empirical recurrence of order 64 (see link above)