A204510 Number of (n+2)X7 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..2 introduced in row major order

9306965, 1294406290, 199470888113, 19402036828532, 2274909402099901

Offset

1,1

Comments

Column 5 of A204511

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for n=3
..0..0..0..0..1..2..0....0..0..1..1..1..1..0....0..0..1..0..1..0..2
..2..0..0..1..0..2..0....0..2..1..0..2..2..2....0..1..0..1..1..0..0
..0..2..0..0..0..0..0....0..1..1..2..2..2..2....0..0..0..0..1..0..0
..0..0..0..0..0..2..2....1..1..1..1..1..2..2....1..1..1..1..1..1..0
..1..1..0..1..0..1..0....1..1..1..1..1..1..2....1..2..0..2..1..0..1

Crossrefs

Sequence in context: A212469 A251280 A234395 * A328207 A069376 A281570

Adjacent sequences: A204507 A204508 A204509 * A204511 A204512 A204513

Keyword

nonn

Author

R. H. Hardin Jan 15 2012

Status

approved