A181034 Number of nX(n+3) binary matrices with no initial bit string in any row or column divisible by 4.

1, 8, 99, 2999, 200798, 30584687, 10496827403, 8147000813446, 14279081380626859, 56548869471250924613, 505895767712482884973116, 10224865987802162338842130221, 466867871514396686081152537710131

Offset: 1

Author

R. H. Hardin Sep 30 2010

Keywords

• nonn

Comments

Superdiagonal 3 of A181031

Examples

			Some solutions for 4X7
..1..1..1..1..1..1..1....1..1..1..1..1..1..1....1..1..1..1..1..1..1
..1..0..1..0..1..0..1....1..0..1..0..1..0..1....1..0..1..0..1..0..1
..1..1..0..1..0..1..0....1..1..0..1..0..1..0....1..1..0..1..0..1..0
..1..0..1..0..1..0..1....1..0..1..0..1..1..1....1..0..1..1..1..0..1
		

Links

• R. H. Hardin, Table of n, a(n) for n=1..22