A283862 Number of 6Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors.

64, 4096, 137459, 5676420, 252014450, 10634931992, 449942735521, 19209358763197, 817866278279137, 34791382042043436, 1481097249523129267, 63049410171178969526, 2683638174949408013195, 114231024572454097056495

Offset

1,1

Comments

Row 6 of A283857.

Links

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

Example

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

Crossrefs

Cf. A283857.

Sequence in context: A189108 A223802 A297379 * A223567 A223580 A267971

Adjacent sequences: A283859 A283860 A283861 * A283863 A283864 A283865

Keyword

nonn

Author

R. H. Hardin, Mar 17 2017

Status

approved