A304154 Number of nX6 0..1 arrays with every element unequal to 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

0, 209, 464, 10182, 100942, 1100030, 12806826, 145611915, 1634366796, 18705511944, 212059052175, 2407657052300, 27373214633586, 310882017371350, 3531677134837950, 40125778624890437, 455828883517634560

Offset

1,2

Comments

Column 6 of A304156.

Links

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

Example

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

Crossrefs

Cf. A304156.

Sequence in context: A063366 A064906 A337778 * A305507 A211672 A250780

Adjacent sequences: A304151 A304152 A304153 * A304155 A304156 A304157

Keyword

nonn

Author

R. H. Hardin, May 07 2018

Status

approved