A298053 Number of nX6 0..1 arrays with every element equal to 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.

5, 49, 34, 141, 231, 512, 780, 1577, 3162, 6228, 12289, 24231, 47917, 95955, 187945, 374818, 743024, 1477074, 2928956, 5839339, 11579457, 23039070, 45786076, 91055211, 180969990, 360008076, 715728819, 1423402113, 2830545436, 5629547006

Offset

1,1

Comments

Column 6 of A298055.

Links

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

Example

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

Crossrefs

Cf. A298055.

Sequence in context: A063429 A297856 A298091 * A298886 A298658 A299610

Adjacent sequences: A298050 A298051 A298052 * A298054 A298055 A298056

Keyword

nonn

Author

R. H. Hardin, Jan 11 2018

Status

approved