A185886 1/729 the number of (n+2)X6 0..2 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace

282672, 66642628, 16772497838, 4223442979220, 1060306245936410, 266120814001133510, 66791286531734378864, 16763506421271197917026, 4207342478663733222005422, 1055970180394670224478558282

Offset

1,1

Comments

Column 4 of A185891

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A235173 A245659 A321055 * A235827 A204866 A236504

Adjacent sequences: A185883 A185884 A185885 * A185887 A185888 A185889

Keyword

nonn

Author

R. H. Hardin Feb 05 2011

Status

approved