A233352 Number of (n+1)X(2+1) 0..3 arrays x(i,j) with row sums sum{x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

464, 11562, 256099, 5139176, 95102518, 1651408189, 27271105465, 432499997768, 6636190734077

Offset

1,1

Comments

Column 2 of A233353

Links

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

Example

Some solutions for n=3
..2..0..0....2..0..0....0..0..3....2..0..2....0..0..0....0..0..0....0..0..3
..0..1..2....3..0..0....1..0..3....3..1..2....1..2..2....2..2..0....0..3..1
..3..2..1....1..1..1....2..1..3....0..3..3....0..3..3....0..2..3....2..0..3
..1..2..3....0..2..3....2..3..3....3..3..3....2..2..2....1..2..3....1..3..2

Crossrefs

Sequence in context: A260497 A254693 A247852 * A233120 A115441 A028383

Adjacent sequences: A233349 A233350 A233351 * A233353 A233354 A233355

Keyword

nonn

Author

R. H. Hardin, Dec 07 2013

Status

approved