A232786 Number of (n+1)X(3+1) 0..2 arrays x(i,j) with row sums sum{j^3*x(i,j), j=1..3+1} nondecreasing, and column sums sum{i^3*x(i,j), i=1..n+1} nondecreasing

350, 9819, 242252, 4641048, 74536295, 1009610447, 11868407907, 125633318086, 1208121070060

Offset

1,1

Comments

Column 3 of A232787

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A184609 A322668 A295708 * A084875 A364508 A074203

Adjacent sequences: A232783 A232784 A232785 * A232787 A232788 A232789

Keyword

nonn

Author

R. H. Hardin, Nov 30 2013

Status

approved