A204970 Number of (n+2)X9 0..1 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..1 introduced in row major order

7962992, 1148525798, 162106684241, 22245382735903, 3075660728764228, 425238528169304434, 58780083916064047171, 8125498010846327444658, 1123226343695553103997328, 155268955515423356478568396

Offset

1,1

Comments

Column 7 of A204971

Links

R. H. Hardin, Table of n, a(n) for n = 1..81

Example

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

Crossrefs

Sequence in context: A233797 A203504 A233803 * A185929 A268334 A032430

Adjacent sequences: A204967 A204968 A204969 * A204971 A204972 A204973

Keyword

nonn

Author

R. H. Hardin Jan 21 2012

Status

approved