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A204350 Number of (n+2)X9 0..3 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..3 introduced in row major order 0
304183813284988, 37918176847270068655, 4606746353051274080442020, 561805129589614687626505061188, 68484240207050885222667504458844900 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A204351
LINKS
EXAMPLE
Some solutions for n=1
..0..0..1..1..0..2..0..3..3....0..0..1..2..0..3..0..1..3
..0..1..3..2..1..1..2..1..1....2..0..3..3..3..2..3..0..0
..0..2..0..3..0..0..2..1..1....3..0..3..2..1..0..2..2..3
CROSSREFS
Sequence in context: A179660 A080125 A367001 * A172592 A082589 A371834
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 14 2012
STATUS
approved

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Last modified July 20 08:23 EDT 2024. Contains 374442 sequences. (Running on oeis4.)