A305286 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero.

5, 1145, 3696, 46983, 301533, 2636906, 21092843, 175328455, 1483162272, 12350651524, 105331621334, 887676949433, 7551807378774, 64100557800097, 544805261115470, 4634560982026166, 39407998339309939, 335347069378931989

Offset

1,1

Comments

Column 6 of A305288.

Links

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

Example

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

Crossrefs

Cf. A305288.

Sequence in context: A123266 A330391 A303894 * A304899 A316581 A304595

Adjacent sequences: A305283 A305284 A305285 * A305287 A305288 A305289

Keyword

nonn

Author

R. H. Hardin, May 29 2018

Status

approved