A222508 Number of nX7 0..1 arrays with exactly floor(nX7/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

5, 44, 441, 8489, 81537, 1802656, 19892241, 473772613, 5455705052, 132847734428, 1556509083100, 38249750511090, 451888833065131, 11163258877769638, 132555800154675325, 3286688523503328223, 39169490256183059057

Offset: 1

Author

R. H. Hardin Feb 23 2013

Keywords

• nonn

Comments

Column 7 of A222509

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..30