A240653 Number of nX5 0..1 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..1 introduced in row major order.

1, 6, 43, 352, 2456, 16629, 118863, 863435, 6296517, 46082534, 337974465, 2482292322, 18247326003, 134198700821, 987225183085, 7263640120506, 53448292499747, 393312676324283, 2894385928048833, 21300183245716512

Offset: 1

Author

R. H. Hardin, Apr 09 2014

Keywords

• nonn

Comments

Column 5 of A240656

Examples

			Some solutions for n=4
..0..0..1..1..0....0..0..0..0..0....0..1..1..1..1....0..1..1..0..0
..0..0..1..1..1....0..0..0..1..0....1..1..1..1..1....1..1..1..0..0
..1..1..0..1..1....0..1..0..0..0....1..1..0..1..1....1..1..1..0..0
..1..1..1..1..0....0..0..0..0..0....1..1..1..1..1....0..1..1..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210