A207344 Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically

18, 324, 858, 5290, 27022, 128292, 684324, 3524736, 17492664, 91157630, 466901309, 2357231531, 12176328967, 62219037705, 316361642076, 1627284771068, 8309635888371, 42388164632017, 217515758892581, 1110796489660535

Offset

1,1

Comments

Column 6 of A207346

Links

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

Example

Some solutions for n=4
..1..0..1..0..1..0....0..1..0..0..1..0....1..1..0..1..0..1....0..1..0..1..0..1
..0..0..1..0..1..0....1..1..1..1..1..1....1..0..1..0..1..0....1..0..1..0..1..0
..0..1..0..1..0..1....1..0..0..1..0..0....0..1..0..0..1..0....1..1..0..0..1..0
..1..1..1..0..1..0....0..0..1..0..0..1....1..1..1..1..0..1....0..1..0..1..0..1

Crossrefs

Sequence in context: A207593 A207512 A207686 * A207486 A207267 A207911

Adjacent sequences: A207341 A207342 A207343 * A207345 A207346 A207347

Keyword

nonn

Author

R. H. Hardin Feb 17 2012

Status

approved