A185519 Number of (n+1)X8 0..2 arrays with every 2X2 subblock singular.

197329, 91539073, 7998109489, 1894624012417, 249246507105681, 46861672135881249, 7163899183570889649, 1241739109392066416737, 200179355912933753165009, 33717771304641221699901697

Offset: 1

Author

R. H. Hardin Jan 29 2011

Keywords

• nonn

Comments

Column 7 of A185521

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..181