A283201 Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors, with the exception of exactly one element.

0, 824, 66412, 4024168, 218628378, 11127848480, 544338609740, 25902857395584, 1207783406994400, 55446986033350996, 2514397433928477616, 112893711771723257624, 5027301753012895382174, 222330741080281786320756

Offset

1,2

Comments

Column 6 of A283203.

Links

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

Example

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

Crossrefs

Cf. A283203.

Sequence in context: A088360 A057002 A247922 * A283731 A236793 A051989

Adjacent sequences: A283198 A283199 A283200 * A283202 A283203 A283204

Keyword

nonn

Author

R. H. Hardin, Mar 02 2017

Status

approved