A202746 Number of 5 X n 0..1 arrays with row sums equal and column sums unequal to adjacent columns.

2, 32, 282, 5092, 75302, 1375912, 24620522, 472929952, 9181463302, 183977062692, 3737085533882

Offset

1,1

Comments

Row 5 of A202742.

Links

Table of n, a(n) for n=1..11.

Example

Some solutions for n=5
..0..1..1..1..0....1..0..0..1..1....1..0..1..1..0....1..0..1..0..1
..1..0..1..0..1....1..0..0..1..1....1..1..0..1..0....1..0..1..1..0
..0..1..1..1..0....0..1..1..0..1....1..0..1..0..1....1..1..0..0..1
..0..0..1..1..1....1..0..0..1..1....1..0..0..1..1....1..0..1..0..1
..0..1..1..1..0....0..0..1..1..1....1..0..0..1..1....1..1..1..0..0

Crossrefs

Cf. A202742.

Sequence in context: A179074 A035602 A158040 * A212797 A203017 A079766

Adjacent sequences: A202743 A202744 A202745 * A202747 A202748 A202749

Keyword

nonn

Author

R. H. Hardin Dec 23 2011

Status

approved