A205269 Number of (n+2)X6 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

82991, 3849194, 178174596, 8174802163, 376019663515, 17296548519787, 795473851332758, 36585763638080307, 1682672043825897571, 77390053482870899949, 3559353733427282231753, 163703208823534008529747

Offset

1,1

Comments

Column 4 of A205273

Links

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

Example

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

Crossrefs

Sequence in context: A046381 A237330 A217127 * A234113 A237097 A206323

Adjacent sequences: A205266 A205267 A205268 * A205270 A205271 A205272

Keyword

nonn

Author

R. H. Hardin Jan 24 2012

Status

approved