A233052 Number of (3+1) X (n+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..n+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..3+1} nondecreasing.

406, 10029, 205965, 3663434, 56606272, 770098445, 9363945606, 103077058558

Offset

1,1

Links

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

Example

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

Crossrefs

Row 3 of A233049.

Sequence in context: A203714 A203710 A251096 * A210329 A317982 A203936

Adjacent sequences: A233049 A233050 A233051 * A233053 A233054 A233055

Keyword

nonn,more

Author

R. H. Hardin, Dec 03 2013

Status

approved