A183261 Number of n X 6 binary arrays with the number of 0-1 adjacencies equal to the number of 0-0 adjacencies.

8, 220, 6851, 284314, 12358457, 553836104, 25285926227, 1169152157882, 54566287853953, 2565099972100788, 121273846165465383, 5760384244239137519, 274671918496073201221, 13139944807683484672079, 630353877399609265385999

Offset

1,1

Comments

Column 6 of A183262.

Links

R. H. Hardin, Table of n, a(n) for n = 1..70

Example

Some solutions for 3 X 6
..0..0..0..0..1..0....0..1..1..1..0..0....0..0..0..1..0..1....0..1..1..0..1..0
..1..0..0..0..1..0....0..1..1..1..0..0....0..0..1..1..0..0....0..0..1..0..0..0
..0..0..1..1..1..1....0..0..0..1..1..0....0..0..0..0..1..1....1..0..1..0..0..0

Crossrefs

Cf. A183262.

Sequence in context: A298964 A298455 A055350 * A316954 A299734 A006919

Adjacent sequences: A183258 A183259 A183260 * A183262 A183263 A183264

Keyword

nonn

Author

R. H. Hardin, Jan 03 2011

Status

approved