A302365 Number of nX6 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

1, 168, 284, 3125, 26458, 330505, 3858625, 48375470, 608124211, 7645706001, 96379576670, 1215653208094, 15330813861321, 193363893550173, 2439014211176791, 30764225158027102, 388042002523348294

Offset

1,2

Comments

Column 6 of A302367.

Links

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

Example

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

Crossrefs

Cf. A302367.

Sequence in context: A060662 A171256 A059463 * A038812 A008890 A230479

Adjacent sequences: A302362 A302363 A302364 * A302366 A302367 A302368

Keyword

nonn

Author

R. H. Hardin, Apr 06 2018

Status

approved