A219308 Unchanging value maps: number of nX6 binary arrays indicating the locations of corresponding elements unequal to no horizontal or vertical neighbor in a random 0..2 nX6 array.

21, 405, 9233, 200376, 4215579, 89981627, 1935133104, 41520773667, 888957906061, 19043081452793, 408152775865291, 8747035260806150, 187430143072289130, 4016312124315997845, 86065761676864158937

Offset: 1

Author

R. H. Hardin Nov 17 2012

Keywords

• nonn

Comments

Column 6 of A219310

Examples

			Some solutions for n=3
..0..1..1..0..0..1....1..0..0..0..0..0....1..0..0..0..0..0....0..0..1..1..0..0
..0..0..1..1..0..0....0..0..1..1..0..0....1..0..0..1..0..0....0..0..1..1..1..0
..0..0..0..1..1..0....0..0..0..1..1..1....1..0..0..0..0..1....0..0..0..1..0..0