A186216 Number of (n+1) X 7 0..2 arrays with every 2 X 2 subblock determinant equal to some horizontal or vertical neighbor 2 X 2 subblock determinant.

76263, 20738153, 2259545215, 363322785761, 49524283508081

Offset: 1

Author

R. H. Hardin Feb 15 2011

Keywords

• nonn

Comments

Column 6 of A186218.

Examples

			Some solutions for 3 X 7
..0..0..0..0..1..2..2....0..0..2..2..1..2..2....0..0..0..0..2..0..2
..0..0..0..0..1..1..2....0..0..0..0..0..0..0....0..0..0..0..0..0..1
..0..0..0..0..1..0..2....0..0..0..2..2..1..2....0..0..1..1..2..0..1
		

Crossrefs

Cf. A186218.