A208697 Number of nX7 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 1 0 and 1 0 1 vertically

35, 1225, 8977, 109599, 1103081, 12014735, 126827983, 1356513169, 14425723357, 153741350353, 1637205937955, 17441454604351, 185777794829329, 1978904120738349, 21078662513667499, 224526113423385269

Offset

1,1

Comments

Column 7 of A208698

Links

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

Example

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

Crossrefs

Sequence in context: A209649 A207756 A207937 * A207504 A207965 A207447

Adjacent sequences: A208694 A208695 A208696 * A208698 A208699 A208700

Keyword

nonn

Author

R. H. Hardin Mar 01 2012

Status

approved