A184790 Number of (n+2)X6 0..2 arrays with each 3X3 subblock singular

19143309, 3680493357, 680930052757, 69241919671789, 10528776249588829, 1538284657636677453, 203556499352081029533

Offset

1,1

Comments

Column 4 of A184791

Links

Table of n, a(n) for n=1..7.

Example

Some solutions for 4X6
..0..0..0..1..1..2....0..0..0..0..0..1....0..0..0..2..1..1....0..0..0..2..0..0
..0..0..0..0..2..0....0..0..0..1..0..1....0..0..0..2..1..1....0..0..0..1..1..2
..0..0..0..0..2..0....0..0..0..0..0..0....0..0..0..0..0..2....0..0..0..1..1..2
..0..0..0..2..1..2....0..0..0..2..0..2....0..0..0..0..0..0....0..0..0..1..1..1

Crossrefs

Sequence in context: A073033 A251389 A138025 * A183697 A022248 A224627

Adjacent sequences: A184787 A184788 A184789 * A184791 A184792 A184793

Keyword

nonn

Author

R. H. Hardin Jan 22 2011

Status

approved