A203895 Number of (n+1)X8 0..4 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) such that rows of b(i,j) and columns of c(i,j) are lexicographically nondecreasing

39889619, 749063366121, 78614554935810312, 8110443447372955603425, 675997322694333574295767738

Offset

1,1

Comments

Column 7 of A203896

Links

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

Example

Some solutions for n=4
..4..1..4..2..2..4..4..4....2..0..4..2..4..2..2..1....2..3..2..1..4..2..2..3
..1..4..2..4..4..4..4..4....0..3..0..2..0..2..2..3....3..2..3..4..2..4..4..3
..1..4..4..4..4..2..2..4....1..4..1..0..4..2..4..3....1..4..3..2..4..2..2..3
..4..2..1..4..4..4..4..0....3..3..2..2..0..2..0..3....4..2..3..4..0..2..3..2
..3..3..2..2..2..1..2..3....3..3..4..2..1..3..0..1....2..4..3..2..4..2..0..3

Crossrefs

Sequence in context: A216006 A330363 A233754 * A072237 A011522 A172539

Adjacent sequences: A203892 A203893 A203894 * A203896 A203897 A203898

Keyword

nonn

Author

R. H. Hardin Jan 07 2012

Status

approved