A233300 Number of (n+1)X(4+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..4+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing.

34, 232, 1986, 21957, 239330, 2694620, 30257296, 338790472, 3761876941, 41492573432

Offset: 1

Author

R. H. Hardin, Dec 07 2013

Keywords

• nonn

Comments

Column 4 of A233301

Examples

			Some solutions for n=5
..0..0..0..0..0....0..0..0..0..0....0..0..1..0..1....0..0..0..1..1
..0..0..1..0..0....0..0..1..1..1....0..0..1..0..1....0..1..1..0..0
..1..0..0..1..1....0..1..0..1..1....1..1..0..0..0....1..0..0..1..0
..1..0..1..0..1....0..1..1..1..1....1..0..1..0..1....0..0..1..1..0
..0..0..1..1..1....1..0..1..1..1....0..0..1..1..1....1..0..0..0..1
..0..1..0..1..1....1..1..1..1..1....0..1..0..1..1....0..1..1..1..1