A232782 Number of (n+1)X(3+1) 0..2 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..3+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

338, 9315, 220424, 4237458, 67436728, 946103684, 11847657204, 133699131246

Offset

1,1

Comments

Column 3 of A232783

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for n=2
..1..2..0..0....2..2..1..0....2..2..0..2....1..1..0..0....1..1..1..1
..1..2..1..2....0..1..0..1....2..1..2..2....0..2..1..2....0..0..0..2
..1..1..2..2....0..1..2..2....1..2..2..2....0..1..2..2....1..1..2..2

Crossrefs

Sequence in context: A205648 A221799 A059976 * A035750 A186043 A107546

Adjacent sequences: A232779 A232780 A232781 * A232783 A232784 A232785

Keyword

nonn

Author

R. H. Hardin, Nov 30 2013

Status

approved