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A204781
Number of (n+2)X9 0..2 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..2 introduced in row major order
1
244944162648, 1352264628934656, 6972630432052561776, 36302705908249227882336, 189028841218044281822571840, 983786658795358884417033843750, 5121078716739687209206582420410120
OFFSET
1,1
COMMENTS
Column 7 of A204782
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..1..0..2..1..2..1....0..1..2..1..2..2..2..2..2
..2..2..1..2..0..2..2..2..0....1..1..0..1..1..1..1..1..0
..0..2..1..2..0..1..2..0..2....1..2..2..1..2..0..1..2..1
..2..0..0..2..0..1..2..1..2....2..1..2..1..2..2..0..2..1
..1..2..1..0..2..1..1..1..2....2..0..2..1..2..1..0..1..2
CROSSREFS
Sequence in context: A202725 A132908 A271820 * A288477 A268846 A076254
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 19 2012
STATUS
approved