A296634 Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.

34, 705, 13275, 249329, 4733229, 89713772, 1700240351, 32223940011, 610746699603, 11575622907479, 219395796042481, 4158271196618720, 78812946387126526, 1493765502846960513, 28311790909987224036

Offset

1,1

Comments

Column 7 of A296635.

Links

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

Example

Some solutions for n=3
..0..1..0..0..0..0..0. .0..1..0..0..0..1..0. .0..0..0..1..0..0..0
..1..1..0..0..0..0..0. .0..0..0..1..0..0..0. .0..1..1..1..0..1..0
..0..0..1..0..0..1..0. .1..0..1..1..0..0..1. .0..1..0..0..0..0..1

Crossrefs

Cf. A296635.

Sequence in context: A166217 A188711 A296334 * A016109 A028211 A028207

Adjacent sequences: A296631 A296632 A296633 * A296635 A296636 A296637

Keyword

nonn

Author

R. H. Hardin, Dec 17 2017

Status

approved