A222514 Number of 6Xn 0..1 arrays with exactly floor(6Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

0, 44, 496, 2862, 23678, 195968, 1802656, 17117005, 168709746, 1694684254, 17289573440, 178062468561, 1845566511698, 19219604394050, 200763478955510, 2102763177782278, 22063214171071906, 231903259943200754

Offset: 1

Author

R. H. Hardin Feb 23 2013

Keywords

• nonn

Comments

Row 6 of A222509

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..26