A203329 Number of nX7 0..2 arrays with the row and column sums nondecreasing

36, 19641, 10806894, 6027116491, 3215213994114

Offset

1,1

Comments

Column 7 of A203330

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A271336 A196885 A271337 * A271338 A001308 A067584

Adjacent sequences: A203326 A203327 A203328 * A203330 A203331 A203332

Keyword

nonn

Author

R. H. Hardin Dec 31 2011

Status

approved