A202566 Number of (n+3)X(n+3) binary arrays with no more than two of any consecutive four bits set in any row or column

7343, 713977, 190831031, 133595643125, 237078101794811, 1113579994706467210

Offset

1,1

Comments

Diagonal of A202574

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A097696 A202574 A202567 * A204507 A295002 A235951

Adjacent sequences: A202563 A202564 A202565 * A202567 A202568 A202569

Keyword

nonn

Author

R. H. Hardin Dec 21 2011

Status

approved