A219427 Unchanging value maps: number of 7Xn binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 7Xn array.

1, 1897, 44857, 1842766, 65352789, 2284814260, 80311501599, 2846763071615, 101180231915225, 3593093772421047, 127477235143792772, 4521648074836617071, 160404051239506589127, 5690803494953995807634

Offset: 1

Author

R. H. Hardin Nov 19 2012

Keywords

• nonn

Comments

Row 7 of A219421

Examples

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