A205261 Number of (n+2)X7 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

785920, 79391891, 8084022743, 820342090696, 83226275730613, 8445646803772751, 857047765548288466, 86969981709764397873, 8825400542834952782544, 895570902640916014256212, 90879395582208018048154556

Offset

1,1

Comments

Column 5 of A205264

Links

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

Example

Some solutions for n=3
..0..1..1..1..0..0..1....0..0..0..1..1..0..0....0..1..1..1..0..0..1
..0..0..0..1..0..0..0....0..1..0..1..1..1..1....0..1..1..0..0..1..1
..1..1..1..1..1..0..0....1..0..1..1..0..0..1....1..0..1..0..0..1..0
..1..1..1..1..0..0..1....0..1..0..0..0..0..1....1..0..1..0..0..0..1
..1..1..1..0..0..1..0....1..0..0..0..1..0..1....0..0..1..0..1..1..1

Crossrefs

Sequence in context: A237089 A206633 A184213 * A157993 A175747 A355707

Adjacent sequences: A205258 A205259 A205260 * A205262 A205263 A205264

Keyword

nonn

Author

R. H. Hardin Jan 24 2012

Status

approved