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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 1
7962992, 1148525798, 162106684241, 22245382735903, 3075660728764228, 425238528169304434, 58780083916064047171, 8125498010846327444658, 1123226343695553103997328, 155268955515423356478568396 (list; graph; refs; listen; history; text; internal format)
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

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Last modified August 19 20:22 EDT 2022. Contains 356229 sequences. (Running on oeis4.)