A304147 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.

5, 157, 238, 117, 3484, 13152, 12582, 139840, 774023, 1302357, 5969791, 40513904, 104507115, 310823229, 2014755745, 7056836043, 19236900969, 101258778882, 428958694755, 1270322334575, 5406011650360, 24736396849595, 83207851721176

Offset

1,1

Comments

Column 6 of A304149.

Links

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

Example

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

Crossrefs

Cf. A304149.

Sequence in context: A151577 A032391 A139978 * A305487 A305087 A316738

Adjacent sequences: A304144 A304145 A304146 * A304148 A304149 A304150

Keyword

nonn

Author

R. H. Hardin, May 07 2018

Status

approved