A204967 Number of (n+2) X 6 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order.

36522, 1085013, 31837899, 916967622, 26548318278, 768548149208, 22245382735903, 643910842041150, 18638431361258012, 539502218649996908, 15616268658553505055, 452023741831342310802, 13084141546692160795551

Offset

1,1

Comments

Column 4 of A204971.

Links

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

Example

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

Crossrefs

Cf. A204971.

Sequence in context: A234856 A222952 A380526 * A011771 A011770 A250540

Adjacent sequences: A204964 A204965 A204966 * A204968 A204969 A204970

Keyword

nonn

Author

R. H. Hardin, Jan 21 2012

Status

approved