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A220146
Number of n X n arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X n array
0
3, 11, 77, 1174, 34959, 3057777, 822242009, 671848868714
OFFSET
1,1
COMMENTS
Diagonal of A220153
EXAMPLE
Some solutions for n=3
..0..0..1....1..0..0....0..0..0....0..0..0....0..0..1....0..0..0....2..1..1
..0..0..0....1..0..0....1..0..0....0..0..0....0..0..0....1..1..0....2..1..1
..2..2..0....2..1..1....1..0..0....2..2..0....1..1..0....2..1..2....2..2..2
CROSSREFS
Sequence in context: A196691 A197064 A117765 * A046153 A163856 A232468
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 06 2012
STATUS
approved