A221027 Sum of neighbor maps: log base 2 of the number of nX7 binary arrays indicating the locations of corresponding elements equal to the sum mod 2 of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nX7 array.

7, 13, 19, 27, 35, 42, 45, 53, 62, 69, 72, 83, 90, 95, 101, 112, 119, 125, 131, 139, 147, 154, 154, 168, 175, 181, 187, 195, 203, 210, 213

Offset: 1

Author

R. H. Hardin Dec 29 2012

Keywords

• nonn

Comments

Column 7 of A221028

Examples

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