A203328 Number of nX6 0..2 arrays with the row and column sums nondecreasing

28, 6050, 1274165, 261192161, 50493863772, 9306918766618

Offset

1,1

Comments

Column 6 of A203330

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A200999 A221935 A230268 * A159407 A099058 A281128

Adjacent sequences: A203325 A203326 A203327 * A203329 A203330 A203331

Keyword

nonn

Author

R. H. Hardin Dec 31 2011

Status

approved