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A205619
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..2 introduced in row major order
0
14, 306, 13068, 1103436, 188139156, 63787803360, 44843430265344, 60947906705204832
OFFSET
1,1
COMMENTS
Diagonal of A205626
EXAMPLE
Some solutions for n=4
..0..0..0..0..1....0..0..0..1..1....0..1..1..2..2....0..1..1..2..1
..2..2..2..2..1....1..0..2..0..1....2..2..0..0..0....1..1..2..2..2
..0..2..0..2..2....2..0..2..0..1....1..2..2..0..1....2..0..0..1..0
..0..1..0..1..0....1..2..1..2..0....0..0..1..0..1....0..0..1..1..1
..2..0..0..0..2....0..0..0..2..0....2..0..0..2..0....1..2..2..2..2
CROSSREFS
Sequence in context: A276699 A258491 A251220 * A034912 A372350 A250966
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 29 2012
STATUS
approved