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A204053
Number of (n+2)X7 0..3 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order
1
4823759, 45689226, 315429190, 2336174650, 18962117027, 135508809479, 1017086083917, 7592417722506, 56889349938986, 423304805355442, 3129226285383207, 23392351131337319, 174669286581663845
OFFSET
1,1
COMMENTS
Column 5 of A204056
LINKS
EXAMPLE
Some solutions for n=3
..0..1..2..1..1..2..2....0..0..1..0..0..1..0....0..1..0..1..1..2..1
..2..0..1..2..1..1..0....1..0..0..1..0..0..0....1..0..1..0..1..1..1
..0..1..0..1..2..1..1....0..1..0..0..1..0..0....0..1..0..1..0..1..1
..1..0..1..0..1..2..1....1..0..1..0..0..1..0....2..0..1..0..1..0..1
..3..1..0..2..0..1..2....0..0..0..1..0..0..1....2..0..0..1..1..3..0
CROSSREFS
Sequence in context: A017635 A203655 A248587 * A176772 A017538 A190583
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2012
STATUS
approved