A222322 Number of nX2 0..1 arrays with exactly floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order.

0, 0, 0, 7, 0, 32, 0, 168, 0, 948, 0, 5279, 0, 29868, 0, 170435, 0, 978324, 0, 5646204, 0, 32726780, 0, 190380464, 0, 1110922620, 0, 6499777527, 0, 38116781580, 0, 223982494824, 0, 1318530693372, 0, 7774269747257, 0, 45903969026388, 0

Offset: 1

Author

R. H. Hardin Feb 15 2013

Keywords

• nonn

Comments

Column 2 of A222328

Examples

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

Links

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