A297800 - OEIS

A297800

Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1s.

1, 105, 1320, 16006, 320168, 5511367, 91376524, 1587468720, 27421636815, 470544728613, 8106158053425, 139669854334501, 2404648275368779, 41411751712923850, 713227235336676149, 12282835762563772060

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

OFFSET

1,2

COMMENTS

Column 6 of A297802.

LINKS

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

EXAMPLE

Some solutions for n=4

..0..0..0..0..1..1. .0..1..0..1..0..0. .0..1..1..0..1..0. .0..1..1..0..0..0

..0..0..0..0..1..1. .1..1..1..1..1..0. .1..1..0..1..0..1. .1..1..0..1..1..0

..1..1..0..0..1..0. .1..1..0..0..1..1. .1..1..0..0..1..1. .0..0..1..0..0..1

..1..1..1..1..0..0. .1..1..1..1..1..0. .0..0..1..1..1..1. .0..0..0..1..1..0

CROSSREFS

Cf. A297802.

Sequence in context: A266105 A376001 A058844 * A165382 A051015 A221449

Adjacent sequences: A297797 A297798 A297799 * A297801 A297802 A297803

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 06 2018

STATUS

approved