A205270 Number of (n+2)X7 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..1 introduced in row major order

596414, 51416847, 4422079769, 376019663515, 32079295935853, 2736913657929574, 233446295978015247, 19913133812861822666, 1698610786398746095844, 144892453140046154281434, 12359421076416241941756207

Offset

1,1

Comments

Column 5 of A205273

Links

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

Example

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

Crossrefs

Sequence in context: A237493 A232361 A236736 * A187643 A283956 A151435

Adjacent sequences: A205267 A205268 A205269 * A205271 A205272 A205273

Keyword

nonn

Author

R. H. Hardin Jan 24 2012

Status

approved