A233050 Number of (1+1)X(n+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..n+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..1+1} nondecreasing

29, 106, 316, 830, 1957, 4221, 8521, 16235, 29432, 51172, 85789, 139287, 219940, 338771, 510152, 752978, 1091268, 1555433, 2183826, 3023745, 4133269, 5583604, 7460602, 9867269, 12927471, 16787371, 21618978, 27625365, 35043248, 44147007

Offset

1,1

Comments

Row 1 of A233049

Links

R. H. Hardin, Table of n, a(n) for n = 1..33

Example

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

Crossrefs

Sequence in context: A009406 A211496 A233049 * A142176 A115272 A138716

Adjacent sequences: A233047 A233048 A233049 * A233051 A233052 A233053

Keyword

nonn

Author

R. H. Hardin, Dec 03 2013

Status

approved