A183472 Number of nX7 binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors

13, 368, 4003, 66012, 1140298, 17932076, 295884064, 4899909637, 80382466165, 1325242681656, 21856484751121, 360125243447020, 5936723238559184, 97871251587664190, 1613326024159412280, 26595700362068793612

Offset

1,1

Comments

Column 7 of A183474

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 4X7
..1..1..0..1..0..1..1....0..0..1..1..0..0..0....1..0..0..0..0..0..0
..0..0..0..1..1..1..0....0..0..0..0..0..0..0....1..0..0..0..0..0..0
..1..0..0..1..1..1..1....1..1..1..1..0..1..0....0..0..0..1..0..1..1
..1..0..0..0..0..0..0....1..1..1..1..0..1..0....1..1..0..1..0..0..0

Crossrefs

Sequence in context: A061015 A330255 A280796 * A009040 A009085 A012013

Adjacent sequences: A183469 A183470 A183471 * A183473 A183474 A183475

Keyword

nonn

Author

R. H. Hardin Jan 05 2011

Status

approved