A301327 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

1, 13, 25, 143, 664, 2520, 12342, 59524, 283455, 1368684, 6584582, 31757409, 153111198, 738871291, 3563886998, 17195977666, 82965273154, 400306670558, 1931473330672, 9319427371662, 44966629489185, 216966438878737

Offset

1,2

Comments

Column 5 of A301330.

Links

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

Example

Some solutions for n=5
..0..0..0..0..0. .0..0..1..1..0. .0..0..1..0..0. .0..1..1..1..1
..0..1..1..0..1. .0..1..1..0..0. .0..1..1..0..0. .1..0..0..1..0
..1..1..0..1..1. .0..0..0..1..0. .0..0..1..1..0. .1..0..0..1..1
..0..0..1..0..0. .0..1..0..0..1. .0..0..1..1..0. .1..1..0..1..0
..0..1..1..0..0. .1..1..0..1..1. .1..0..0..0..1. .1..0..0..0..0

Crossrefs

Cf. A301330.

Sequence in context: A283255 A322662 A151776 * A116524 A053404 A295794

Adjacent sequences: A301324 A301325 A301326 * A301328 A301329 A301330

Keyword

nonn

Author

R. H. Hardin, Mar 18 2018

Status

approved