A233365 Number of (n+1)X(6+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..6+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

76, 1043, 19711, 494606, 11689997, 270547199, 5873283547, 120044822528

Offset

1,1

Comments

Column 6 of A233366

Links

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

Example

Some solutions for n=3
..0..0..1..1..0..0..0....1..0..0..0..0..0..0....0..1..0..0..0..1..1
..0..0..0..1..0..1..1....0..1..0..1..0..0..1....1..1..0..0..1..1..1
..0..0..0..0..1..1..1....0..0..1..0..1..1..1....1..1..0..1..1..1..1
..0..0..1..1..1..1..1....0..0..0..1..1..1..1....0..0..1..1..1..1..1

Crossrefs

Sequence in context: A137146 A156388 A156396 * A264627 A136539 A267797

Adjacent sequences: A233362 A233363 A233364 * A233366 A233367 A233368

Keyword

nonn

Author

R. H. Hardin, Dec 08 2013

Status

approved