A296403 Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 3 neighboring 1s.

1, 114, 1182, 17783, 368770, 6200926, 107541673, 1896487480, 33169242951, 581034735208, 10175550661927, 178195092238296, 3120979490569285, 54657658052862375, 957239287898636263, 16764522337353504432

Offset

1,2

Comments

Column 6 of A296405.

Links

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

Example

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

Crossrefs

Cf. A296405.

Sequence in context: A251452 A239570 A002952 * A262416 A108344 A200551

Adjacent sequences: A296400 A296401 A296402 * A296404 A296405 A296406

Keyword

nonn

Author

R. H. Hardin, Dec 11 2017

Status

approved