A186805 Number of (n+2)X10 binary arrays with no 3X3 subblock commuting with any horizontal or vertical neighbor 3X3 subblock.

922087441, 721577251158, 582841090096150, 471067696528736345, 380438338036924395628

Offset

1,1

Comments

Column 8 of A186806

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for 4X10
..1..0..0..0..0..1..0..0..1..1....1..0..0..0..0..1..0..0..0..0
..0..0..1..0..0..0..0..1..1..0....0..0..1..0..0..1..0..1..0..0
..0..0..0..0..0..0..1..0..1..1....0..0..0..0..0..0..0..1..1..0
..0..0..0..1..0..1..1..1..1..1....0..0..0..1..0..0..0..1..0..1

Crossrefs

Sequence in context: A015382 A382164 A115385 * A122532 A172605 A384375

Adjacent sequences: A186802 A186803 A186804 * A186806 A186807 A186808

Keyword

nonn

Author

R. H. Hardin, Feb 26 2011

Status

approved