A185485 Number of (n+1)X8 binary arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant

5182, 346356, 14150114, 699638196, 31993561712, 1513130455943, 70588969710949, 3312295977303361, 155051541648107775, 7265486453914216528, 340306050957672158348, 15942330115264180673768, 746795611094798145728722

Offset

1,1

Comments

Column 7 of A185487

Links

R. H. Hardin, Table of n, a(n) for n = 1..65

Example

Some solutions for 3X8
..1..0..1..0..0..0..0..0....1..0..1..0..1..1..0..0....0..0..0..0..0..0..1..0
..0..0..1..0..1..1..1..1....0..0..1..0..0..0..0..0....0..0..1..1..0..0..0..0
..0..0..0..0..1..1..1..1....1..0..1..0..1..0..0..0....1..0..1..1..0..0..0..1

Crossrefs

Sequence in context: A247259 A186900 A186847 * A061050 A175745 A190464

Adjacent sequences: A185482 A185483 A185484 * A185486 A185487 A185488

Keyword

nonn

Author

R. H. Hardin Jan 28 2011

Status

approved