A303013 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

16, 136, 579, 4237, 27719, 160253, 1044810, 6647878, 40950485, 259797055, 1641019221, 10271402463, 64751808644, 408088221522, 2564707041155, 16146667797491, 101680227531745, 639714955445811, 4026538874501554

Offset

1,1

Comments

Column 5 of A303016.

Links

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

Example

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

Crossrefs

Cf. A303016.

Sequence in context: A304506 A187175 A302319 * A059421 A231766 A302817

Adjacent sequences: A303010 A303011 A303012 * A303014 A303015 A303016

Keyword

nonn

Author

R. H. Hardin, Apr 17 2018

Status

approved