A232829 Number of (n+1)X(5+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..5+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing

54, 760, 8898, 111870, 1366233, 15664761, 170427953, 1758001316, 17221574143, 160878299711

Offset

1,1

Comments

Column 5 of A232831

Links

Table of n, a(n) for n=1..10.

Example

Some solutions for n=4
..0..1..1..0..0..0....1..1..0..0..0..0....1..1..1..0..0..0....0..0..0..0..1..0
..0..0..0..0..1..1....0..0..1..1..0..0....1..1..0..0..0..1....1..0..0..0..1..1
..1..0..0..0..1..1....0..0..0..0..1..1....1..1..0..0..0..1....1..0..0..0..1..1
..0..0..0..1..1..1....0..0..0..0..1..1....0..0..0..1..1..0....1..1..1..1..0..1
..0..1..1..1..0..1....0..0..1..1..1..1....0..0..1..1..1..1....0..1..1..1..1..1

Crossrefs

Sequence in context: A139178 A288838 A157094 * A368539 A093972 A281775

Adjacent sequences: A232826 A232827 A232828 * A232830 A232831 A232832

Keyword

nonn

Author

R. H. Hardin, Nov 30 2013

Status

approved