A219419 Unchanging value maps: number of nX6 binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 nX6 array.

21, 454, 9926, 218838, 4775307, 104434119, 2284814260, 49979133672, 1093274545336, 23915155162485, 523138192294728, 11443519356879492, 250324199629970283, 5475780830828522030, 119781370244825665556

Offset: 1

Author

R. H. Hardin Nov 19 2012

Keywords

• nonn

Comments

Column 6 of A219421

Examples

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