A183515 Number of nX7 binary arrays with each element equal to either the sum mod 2 of its horizontal and vertical neighbors or the sum mod 2 of its diagonal and antidiagonal neighbors

13, 272, 4903, 94376, 1381491, 23569130, 401449253, 6843217545, 116932875870, 1988233967613, 33890870058722, 577699702907046, 9847424509469045, 167864671236292428, 2861294207208668578, 48773395746553427342

Offset

1,1

Comments

Column 7 of A183517

Links

R. H. Hardin, Table of n, a(n) for n = 1..24

Example

Some solutions for 3X7
..1..0..0..0..0..0..0....1..1..0..1..0..0..1....1..0..0..0..0..1..1
..1..1..0..0..1..0..0....0..0..0..0..1..1..1....1..1..1..1..1..0..0
..0..1..0..1..0..0..0....1..1..0..0..0..1..0....1..1..1..1..1..1..0

Crossrefs

Sequence in context: A142262 A364243 A163155 * A001658 A034911 A196652

Adjacent sequences: A183512 A183513 A183514 * A183516 A183517 A183518

Keyword

nonn

Author

R. H. Hardin Jan 05 2011

Status

approved