A186801 Number of (n+2)X6 binary arrays with no 3X3 subblock commuting with any horizontal or vertical neighbor 3X3 subblock

244558, 13730715, 782510382, 44618824642, 2543130767720, 144968185692408, 8263791225579948, 471067696528736345, 26852704296317001032, 1530709282365815254320, 87256413284003840550168

Offset

1,1

Comments

Column 4 of A186806

Links

R. H. Hardin, Table of n, a(n) for n = 1..147

Example

Some solutions for 4X6
..0..0..1..1..0..1....0..0..0..0..1..0....1..0..0..1..1..1....0..1..0..1..1..1
..0..0..0..1..1..1....0..0..1..0..0..0....0..0..1..1..0..1....0..0..1..1..0..1
..0..0..0..1..1..1....1..0..0..0..1..1....0..0..0..0..1..1....1..0..0..1..0..1
..1..0..0..0..0..1....1..0..0..1..1..0....0..0..0..1..0..0....0..0..0..0..0..1

Crossrefs

Sequence in context: A187534 A140792 A083623 * A157761 A349086 A347890

Adjacent sequences: A186798 A186799 A186800 * A186802 A186803 A186804

Keyword

nonn

Author

R. H. Hardin Feb 26 2011

Status

approved