A205263 Number of (n+2)X9 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..1 introduced in row major order

44989988, 16618559061, 6206887994602, 2306771728514169, 857047765548288466, 318538318082592159576, 118390237532638666425606, 44000626228588774560866297, 16353210105219251396525765791

Offset

1,1

Comments

Column 7 of A205264

Links

R. H. Hardin, Table of n, a(n) for n = 1..137

Example

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

Crossrefs

Sequence in context: A049360 A130913 A213353 * A087534 A183747 A112444

Adjacent sequences: A205260 A205261 A205262 * A205264 A205265 A205266

Keyword

nonn

Author

R. H. Hardin Jan 24 2012

Status

approved