A326163 Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

13, 46, 160, 838, 5555, 39808, 307759, 2396312, 18554951, 144011286, 1114725151, 8648561245, 67114777306, 521304493710, 4049638171109, 31461571016553, 244413499965088, 1898683692048684, 14749279061897812, 114573556996895961

Offset

1,1

Comments

Column 6 of A326165.

Links

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

Example

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

Crossrefs

Cf. A326165.

Sequence in context: A007587 A318035 A219905 * A034462 A116476 A299716

Adjacent sequences: A326160 A326161 A326162 * A326164 A326165 A326166

Keyword

nonn

Author

R. H. Hardin, Jun 09 2019

Status

approved