A298318 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

13, 73, 48, 243, 934, 2466, 11175, 48002, 249672, 1256472, 6256517, 36462203, 192861223, 1027455632, 5888885895, 31880672236, 173901715542, 979585422447, 5361016201314, 29497489222797, 164594660317597, 905565271526330

Offset

1,1

Comments

Column 6 of A298320.

Links

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

Example

Some solutions for n=7
..0..1..1..0..1..1. .0..0..1..1..0..0. .0..1..1..1..1..0. .0..1..1..1..1..0
..0..1..1..0..1..1. .0..0..1..1..0..0. .1..0..1..1..0..1. .1..1..0..0..1..1
..0..0..0..0..0..1. .0..1..1..1..1..0. .0..0..0..0..0..0. .1..0..0..0..0..1
..0..1..1..0..1..1. .0..1..1..0..1..0. .0..1..1..1..1..0. .1..1..0..0..1..1
..1..0..1..1..0..1. .0..0..1..1..0..0. .1..0..1..1..0..1. .1..1..0..0..1..1
..1..1..1..1..1..1. .1..0..1..0..0..0. .0..0..0..0..0..0. .1..0..0..0..0..0
..1..1..0..1..1..0. .1..0..1..0..0..1. .1..0..1..1..0..1. .0..1..0..0..1..1

Crossrefs

Cf. A298320.

Sequence in context: A000470 A297905 A298499 * A299391 A299192 A300028

Adjacent sequences: A298315 A298316 A298317 * A298319 A298320 A298321

Keyword

nonn

Author

R. H. Hardin, Jan 17 2018

Status

approved