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A201209
Number of n X n 0..3 arrays with every row and column running average nondecreasing rightwards and downwards
0
4, 50, 1684, 146946, 33635880, 21062625664, 37432954261477
OFFSET
1,1
COMMENTS
Diagonal of A201216
EXAMPLE
Some solutions for n=3
..0..2..2....0..1..2....1..1..2....1..1..2....0..0..1....0..0..0....0..0..0
..0..2..3....0..1..3....1..2..2....1..3..3....0..2..2....0..1..2....1..1..1
..2..3..3....0..2..3....2..3..3....1..2..3....3..3..3....1..1..1....1..3..3
CROSSREFS
Sequence in context: A173218 A234714 A201829 * A026865 A016078 A327229
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2011
STATUS
approved