A185843 Number of (n+1)X8 0..2 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace

332937, 319126401, 149296412943, 80217651167325, 42234121752791535, 22396183799936101173

Offset

1,1

Comments

Column 7 of A185845

Links

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

Example

Some solutions for 3X8
..0..0..0..0..1..1..1..2....0..0..0..0..1..1..0..1....0..0..0..0..2..1..0..0
..0..0..0..2..2..1..0..1....0..0..0..0..1..1..1..2....0..0..0..0..1..0..1..2
..0..0..0..0..0..0..0..2....0..0..0..0..1..0..0..1....0..0..0..0..1..0..1..1

Crossrefs

Sequence in context: A206658 A069337 A187138 * A261861 A234129 A232412

Adjacent sequences: A185840 A185841 A185842 * A185844 A185845 A185846

Keyword

nonn

Author

R. H. Hardin Feb 05 2011

Status

approved