A188306 Number of (n+1)X5 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums

160, 3036, 30096, 321696, 3415196, 37040856, 396560236, 4280848766, 45974525280, 495422640310, 5328080437862, 57374376030330, 617348839225218, 6645962770531796, 71524119538407004, 769894519113954114

Offset

1,1

Comments

Column 4 of A188311

Links

R. H. Hardin, Table of n, a(n) for n = 1..196

Example

Some solutions for 3X5
..1..0..0..1..0....0..1..1..1..1....0..1..1..1..1....0..1..1..1..1
..1..0..0..1..0....0..0..1..0..1....0..0..0..0..0....1..1..0..0..1
..1..0..0..1..0....0..1..0..1..1....0..1..1..0..1....0..1..1..1..1

Crossrefs

Sequence in context: A013448 A234650 A214354 * A189351 A168527 A185492

Adjacent sequences: A188303 A188304 A188305 * A188307 A188308 A188309

Keyword

nonn

Author

R. H. Hardin Mar 27 2011

Status

approved