A233048 Number of (n+1)X(3+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..3+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

316, 8494, 205965, 4406966, 82425923, 1386551033, 21335158650, 304189186996

Offset

1,1

Comments

Column 3 of A233049

Links

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

Example

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

Crossrefs

Sequence in context: A358926 A264540 A253689 * A101112 A012871 A142003

Adjacent sequences: A233045 A233046 A233047 * A233049 A233050 A233051

Keyword

nonn

Author

R. H. Hardin, Dec 03 2013

Status

approved