A283128 Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors.

64, 2816, 112276, 4598361, 187671790, 7664347268, 312996735204, 12781345612180, 521941108563948, 21314084605931116, 870384960980750200, 35543165931727677084, 1451445930088326314114, 59271458162967611805997

Offset

1,1

Comments

Column 6 of A283130.

Links

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

Example

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

Crossrefs

Cf. A283130.

Sequence in context: A240635 A297372 A283696 * A295714 A187623 A187631

Adjacent sequences: A283125 A283126 A283127 * A283129 A283130 A283131

Keyword

nonn

Author

R. H. Hardin, Mar 01 2017

Status

approved