A302532 Number of 6Xn 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

0, 162, 2086, 3256, 17546, 182773, 1275348, 5557469, 29725028, 219531538, 1417475683, 7594793077, 44320481404, 286609212983, 1773676415155, 10321010368540, 61768196817718, 382689525785694, 2335752911548794

Offset

1,2

Comments

Row 6 of A302528.

Links

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

Example

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

Crossrefs

Cf. A302528.

Sequence in context: A342850 A304166 A213288 * A288489 A303413 A249295

Adjacent sequences: A302529 A302530 A302531 * A302533 A302534 A302535

Keyword

nonn

Author

R. H. Hardin, Apr 09 2018

Status

approved