A304548 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

1, 82, 217, 2186, 16782, 127607, 1061345, 8678318, 70215574, 577416272, 4726737248, 38660295862, 316896797330, 2595679202847, 21259473458379, 174175307343534, 1426821139278556, 11688308432092316, 95752925469921338

Offset

1,2

Comments

Column 5 of A304551.

Links

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

Example

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

Crossrefs

Cf. A304551.

Sequence in context: A044414 A044795 A092229 * A316373 A309033 A306133

Adjacent sequences: A304545 A304546 A304547 * A304549 A304550 A304551

Keyword

nonn

Author

R. H. Hardin, May 14 2018

Status

approved