A296395 Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 3 neighboring 1s.

13, 328, 4237, 72069, 1181174, 19142885, 313843472, 5120370505, 83668287300, 1366763186313, 22326908025452, 364741919560559, 5958331264235749, 97335561172566173, 1590069893991415026, 25975333861970957483

Offset

1,1

Comments

Column 7 of A296396.

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..0..0..0..0..0. .0..0..0..1..0..1..0
..0..0..1..0..1..0..1. .0..1..0..1..1..0..0. .0..0..0..1..0..1..1
..0..0..0..0..0..1..1. .0..1..0..0..0..0..1. .0..0..0..0..0..1..1
..0..0..1..0..1..0..1. .0..0..0..0..1..1..0. .0..0..0..0..0..0..1
..0..1..0..0..0..0..0. .0..1..1..0..0..1..0. .1..1..0..0..0..0..0

Crossrefs

Cf. A296396.

Sequence in context: A183803 A253458 A012492 * A183440 A296018 A348087

Adjacent sequences: A296392 A296393 A296394 * A296396 A296397 A296398

Keyword

nonn

Author

R. H. Hardin, Dec 11 2017

Status

approved