A240782 Number of nX7 0..1 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..1 introduced in row major order.

1, 22, 472, 9581, 226532, 5228820, 121621207, 2827515311, 65742420202, 1528546759636, 35539596883248, 826313572773202, 19212201839186636, 446693206688680120, 10385838163314549709, 241475873187832394155

Offset: 1

Author

R. H. Hardin, Apr 12 2014

Keywords

• nonn

Comments

Column 7 of A240783

Examples

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

Links

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