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

1,1

Comments

Column 7 of A202471

Links

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

Example

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

Crossrefs

Sequence in context: A205953 A205464 A374779 * A224639 A298704 A308079

Adjacent sequences: A202467 A202468 A202469 * A202471 A202472 A202473

Keyword

nonn

Author

R. H. Hardin Dec 19 2011

Status

approved