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A203957
Number of (n+1)X(n+1) 0..2 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) such that rows of b(i,j) and columns of c(i,j) are lexicographically nondecreasing
0
32, 851, 144184, 157316750, 1111763853732, 50733485047025530, 15590622229636053238362
OFFSET
1,1
COMMENTS
Diagonal of A203965
EXAMPLE
Some solutions for n=4
..0..0..2..0..1....1..1..2..2..1....0..1..0..2..2....1..2..1..1..1
..1..1..0..2..1....1..2..1..1..2....1..1..2..2..2....2..1..2..2..2
..0..2..0..1..2....2..1..2..2..2....2..1..1..2..2....1..2..2..2..2
..1..1..2..1..2....2..2..2..2..0....1..2..1..2..2....1..2..2..2..2
..2..2..1..2..2....2..2..2..2..0....1..2..2..0..2....1..2..2..2..2
CROSSREFS
Sequence in context: A139677 A231161 A220460 * A301839 A302067 A281474
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 08 2012
STATUS
approved