A296403 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

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

(list; graph; refs; listen; history; text; internal format)

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