A207424 Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 0 vertically

25, 625, 5625, 47089, 444889, 3892729, 32936121, 283215241, 2427040225, 20642505625, 175841842225, 1499143116025, 12764120981481, 108666218127481, 925439613839521, 7880177347151769, 67093251777369801, 571284105880558225

Offset

1,1

Comments

Column 6 of A207426

Links

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

Example

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

Crossrefs

Sequence in context: A207906 A208037 A207856 * A207739 A288854 A208081

Adjacent sequences: A207421 A207422 A207423 * A207425 A207426 A207427

Keyword

nonn

Author

R. H. Hardin Feb 17 2012

Status

approved