A202888 Number of nX7 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.

292, 701275, 922352267, 1137589582096, 1452080571954205, 1855037301620277541, 2365289879500027706428, 3016217753359820252116493, 3846628606342304091797101743, 4905606162973199116333144693744

Offset: 1

Author

R. H. Hardin, Dec 25 2011

Keywords

• nonn

Examples

			Some solutions for n=2
..0..0..0..1..1..0..2....0..1..1..2..1..1..0....0..0..2..2..0..2..2
..0..1..1..0..1..2..2....0..0..0..2..0..1..0....0..1..2..2..0..1..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210

Crossrefs

Column 7 of A202889.