A283383 Number of nX5 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.

0, 91, 4420, 116624, 2993934, 71707838, 1644385909, 36631580212, 797807876394, 17071093013959, 360093050350939, 7506214481935722, 154911588816764077, 3169754325029230295, 64378159448861378436, 1299032728948862185980

Offset

1,2

Comments

Column 5 of A283386.

Links

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

Example

Some solutions for n=4
..0..0..1..1..1. .0..0..0..0..0. .1..0..1..0..1. .0..0..1..0..0
..1..0..0..1..0. .1..0..1..0..1. .0..0..1..0..1. .1..0..1..1..1
..0..0..0..1..0. .0..0..1..1..1. .0..1..0..1..0. .0..0..0..1..0
..0..1..0..1..0. .0..0..1..0..0. .1..0..1..1..1. .1..1..1..0..1

Crossrefs

Cf. A283386.

Sequence in context: A129965 A017807 A017754 * A004380 A234123 A103855

Adjacent sequences: A283380 A283381 A283382 * A283384 A283385 A283386

Keyword

nonn

Author

R. H. Hardin, Mar 06 2017

Status

approved