A185483 Number of (n+1) X 6 binary arrays with every 2 X 2 subblock determinant equal to some horizontal or vertical neighbor 2 X 2 subblock determinant.

632, 15402, 260172, 5026765, 92026207, 1723639416, 31993561712, 596127705496, 11090335813888, 206455498003433, 3842337223051085, 71517322707543044, 1331091602445994492, 24774933644949671704, 461119872360212975722

Offset

1,1

Comments

Column 5 of A185487.

Links

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

Example

Some solutions for 3 X 6
..1..1..1..1..1..0....0..1..0..1..1..0....0..1..0..0..1..0....0..0..0..1..1..0
..0..0..0..0..0..0....0..0..0..0..1..1....0..0..0..0..0..0....1..1..0..1..1..0
..0..0..0..0..1..1....0..1..0..1..1..0....0..0..1..1..0..1....0..0..0..0..1..1

Crossrefs

Cf. A185487.

Sequence in context: A006913 A154088 A321639 * A074762 A177684 A177214

Adjacent sequences: A185480 A185481 A185482 * A185484 A185485 A185486

Keyword

nonn

Author

R. H. Hardin, Jan 28 2011

Status

approved