A303019 Number of 5Xn 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, 264, 1320, 5299, 27719, 166978, 970892, 5570473, 32810770, 195455605, 1165770354, 6969602036, 41824319546, 251592103931, 1515655816134, 9141938094355, 55199692791444, 333566356612004, 2016921352770160

Offset

1,1

Comments

Row 5 of A303016.

Links

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

Example

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

Crossrefs

Cf. A303016.

Sequence in context: A302418 A303185 A302326 * A302823 A303516 A240481

Adjacent sequences: A303016 A303017 A303018 * A303020 A303021 A303022

Keyword

nonn

Author

R. H. Hardin, Apr 17 2018

Status

approved