A222773 Number of 5Xn 0..1 arrays with exactly floor(5Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.

0, 48, 301, 3431, 19766, 256546, 1570588, 21526008, 136549058, 1916013454, 12429454430, 176824724591, 1163475046332, 16694274193142, 110869265032135, 1600019787081011, 10694449471174787, 154977656102006006

Offset: 1

Author

R. H. Hardin Mar 05 2013

Keywords

• nonn

Comments

Row 5 of A222769

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..39