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A223717
Number of n X n 0..2 arrays with rows, antidiagonals and columns unimodal
0
3, 81, 5883, 608855, 74140718, 9991366555, 1461411174370, 229731305080429, 38440119395606004
OFFSET
1,1
COMMENTS
Diagonal of A223725
EXAMPLE
Some solutions for n=3
..2..1..1....2..2..0....2..2..2....1..1..2....2..0..0....2..1..1....1..2..1
..0..0..1....2..1..1....2..2..0....2..1..1....0..1..0....1..2..2....1..2..1
..0..0..0....1..1..1....2..2..0....0..0..1....0..2..0....0..1..0....0..1..0
CROSSREFS
Sequence in context: A223736 A355157 A207229 * A223825 A207222 A207007
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 26 2013
STATUS
approved