A202470 Number of (n+2)X9 binary arrays with no more than two of any consecutive three bits set in any row or column.

10894297, 1966463785, 347030298362, 60472625443366, 10610932604054547, 1859521153822030023, 325778072452564800064, 57089473505402700427612, 10003712847692227326534941, 1752925427213891417645669229

Offset: 1

Author

R. H. Hardin Dec 19 2011

Keywords

• nonn

Comments

Column 7 of A202471

Examples

			Some solutions for n=3
..0..0..0..0..0..0..1..1..0....0..0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..1..0....0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..1..0
..0..0..0..0..0..1..0..1..0....0..0..0..0..0..1..0..1..0
..0..0..0..0..0..0..1..0..1....0..0..0..0..0..0..0..0..0
		

Links

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