A185495 Number of (n+1)X8 binary arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum

3616, 631720, 52129536, 5020204316, 468319269164, 44566790792864

Offset

1,1

Comments

Column 7 of A185497

Links

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

Example

Some solutions for 4X8
..0..0..0..0..0..1..1..1....0..0..0..0..1..1..0..1....0..0..0..0..1..0..0..0
..0..0..0..1..1..1..1..0....0..0..0..0..0..0..1..0....0..1..0..1..0..0..1..0
..0..0..0..0..0..1..1..1....0..0..0..1..0..1..1..1....0..0..0..0..1..0..1..1
..0..0..0..1..1..0..0..1....0..0..0..1..0..0..1..0....0..0..0..1..1..1..0..1

Crossrefs

Sequence in context: A270260 A106433 A188309 * A029829 A187745 A329539

Adjacent sequences: A185492 A185493 A185494 * A185496 A185497 A185498

Keyword

nonn

Author

R. H. Hardin Jan 29 2011

Status

approved