A233046 Number of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

29, 117, 406, 1236, 3486, 9301, 23663, 58115, 138690, 323840, 742851, 1679010, 3749771, 8289248, 18168895, 39536497, 85496710, 183891668, 393668931, 839245009, 1782590609, 3773864595, 7965997430, 16770228087, 35219988730

Offset

1,1

Comments

Column 1 of A233049

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

Some solutions for n=5
..0..0....0..1....2..1....1..0....1..0....0..0....2..0....0..0....2..1....0..1
..0..1....2..0....2..1....1..0....1..0....1..0....0..1....2..0....2..1....0..1
..1..1....0..1....0..2....2..1....1..1....1..0....1..1....2..0....0..2....0..1
..2..1....0..1....1..2....0..2....1..1....2..0....2..1....0..2....0..2....1..1
..1..2....2..1....1..2....0..2....0..2....0..1....0..2....0..2....2..1....1..1
..1..2....1..2....1..2....2..1....0..2....0..1....2..2....2..2....0..2....1..2

Crossrefs

Sequence in context: A042646 A188359 A042648 * A042650 A158560 A330811

Adjacent sequences: A233043 A233044 A233045 * A233047 A233048 A233049

Keyword

nonn

Author

R. H. Hardin, Dec 03 2013

Status

approved