A202593 Number of (n+2)X(n+2) binary arrays avoiding patterns 001 and 000 in rows and columns

126, 3150, 157952, 18741086, 4938195402, 2959658132400, 3996920175877750, 12207027709419962294, 84190194249126084633600, 1311991584509363060990507862, 46186755299185341632232009561226

Offset

1,1

Comments

Diagonal of A202601

Links

R. H. Hardin, Table of n, a(n) for n = 1..21

Example

Some solutions for n=2
..1..1..0..1....1..1..0..1....1..1..1..1....1..1..1..1....1..0..1..1
..1..0..1..1....1..1..1..0....0..1..1..1....0..1..1..1....0..1..1..1
..1..1..0..0....0..1..1..1....1..1..1..0....1..0..1..0....1..1..0..1
..0..1..1..0....1..1..1..0....1..1..1..1....1..0..1..1....1..1..1..1

Crossrefs

Sequence in context: A267282 A008397 A329754 * A293104 A267750 A285921

Adjacent sequences: A202590 A202591 A202592 * A202594 A202595 A202596

Keyword

nonn

Author

R. H. Hardin Dec 21 2011

Status

approved