A186127 Number of (n+1)X9 binary arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.

678, 14606, 120290, 1574348, 17129792, 220010616, 2630528360, 33067061342, 411149162658, 5153688541776, 64828282889916, 815418585280038, 10288257115910818, 129785918260715398, 1639362506927114546

Offset: 1

Author

R. H. Hardin Feb 13 2011

Keywords

• nonn

Comments

Column 8 of A186128

Examples

			Some solutions for 3X9
..1..1..0..0..1..0..0..1..1....1..1..0..1..1..0..0..1..1
..1..1..1..0..0..0..1..1..1....0..0..0..1..1..1..0..0..0
..0..0..1..0..0..1..1..0..0....0..0..1..1..0..1..1..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..20