A232706 Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

86, 542, 2694, 11181, 40292, 129801, 380718, 1032575, 2618582, 6265567, 14247628, 30973276, 64691673, 130338859, 254200605, 481341431, 887215679, 1595444529, 2804527975, 4827471451, 8149530067, 13511225076, 22026277342, 35347008158

Offset

1,1

Comments

Column 1 of A232708

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

Some solutions for n=6
..3..0....0..0....3..0....2..0....0..0....0..0....1..0....0..1....2..0....2..0
..1..1....0..0....1..1....3..0....0..1....3..0....0..1....1..2....0..2....1..1
..1..1....0..2....2..1....1..1....3..1....0..1....0..1....2..2....1..3....1..1
..2..1....3..2....1..2....1..1....1..2....1..2....2..1....2..3....1..3....1..2
..3..1....3..2....3..2....0..2....1..2....3..2....2..1....2..3....2..3....3..2
..1..2....2..3....2..3....1..2....1..2....1..3....2..1....2..3....3..3....0..3
..2..3....2..3....3..3....0..3....1..2....1..3....0..2....2..3....3..3....3..3

Crossrefs

Sequence in context: A035136 A202524 A232708 * A344679 A231266 A202769

Adjacent sequences: A232703 A232704 A232705 * A232707 A232708 A232709

Keyword

nonn

Author

R. H. Hardin, Nov 28 2013

Status

approved