A186820 Half the number of (n+2)X6 binary arrays with each 3X3 subblock having sum 4 or 5

14229, 173121, 2009622, 24581099, 315843055, 4037185979, 52016332522, 676967599202, 8797063846281, 114525000303377, 1494214340595378, 19486159712805501, 254239381610119789, 3318768935260629498

Offset

1,1

Comments

Column 4 of A186825

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 4X6 with a(1,1)=0
..0..0..1..1..0..0....0..0..1..0..1..1....0..0..0..0..1..0....0..0..1..0..1..0
..0..0..1..0..0..1....1..1..1..1..1..0....1..0..1..0..0..1....0..1..1..0..0..1
..1..1..0..1..1..0....0..0..0..0..0..1....0..1..1..1..1..0....0..0..1..1..0..1
..0..0..1..1..0..1....0..1..0..1..0..1....0..0..0..0..1..1....0..0..1..0..0..1

Crossrefs

Sequence in context: A205060 A237541 A270514 * A232263 A034232 A233889

Adjacent sequences: A186817 A186818 A186819 * A186821 A186822 A186823

Keyword

nonn

Author

R. H. Hardin Feb 27 2011

Status

approved