A233047 Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

106, 1112, 10029, 76535, 517022, 3217676, 18578380, 100647587, 516316181, 2528508107, 11904710641, 54154100914, 239082417572

Offset

1,1

Comments

Column 2 of A233049

Links

Table of n, a(n) for n=1..13.

Example

Some solutions for n=4
..0..1..0....0..2..1....2..1..0....1..0..0....0..1..1....1..0..1....2..0..1
..1..1..1....0..2..1....0..0..2....1..0..0....0..0..2....2..2..0....2..1..1
..1..1..2....0..1..2....2..1..1....1..1..1....1..1..1....0..1..2....0..1..2
..0..2..2....0..1..2....2..1..1....1..0..2....1..1..1....0..1..2....0..2..2
..1..2..2....2..2..2....0..2..2....1..2..1....0..2..2....2..2..2....1..2..2

Crossrefs

Sequence in context: A188837 A184217 A184209 * A206755 A200969 A234413

Adjacent sequences: A233044 A233045 A233046 * A233048 A233049 A233050

Keyword

nonn

Author

R. H. Hardin, Dec 03 2013

Status

approved