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A219366
Number of n X n arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 n X n array
0
4, 13, 618, 82312, 39601472, 68107762118
OFFSET
1,1
COMMENTS
Diagonal of A219373
EXAMPLE
Some solutions for n=3
..1..1..0....2..2..2....2..2..3....0..0..0....0..0..0....2..0..2....1..1..0
..1..0..0....2..2..3....2..0..3....0..0..2....0..0..0....0..0..0....1..0..0
..3..2..0....2..3..3....0..0..0....3..3..3....1..3..0....1..0..0....3..1..0
CROSSREFS
Sequence in context: A316372 A306130 A317267 * A270638 A182439 A182441
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 19 2012
STATUS
approved