A203891 Number of (n+1)X4 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

16842, 2634939, 499486878, 74956749750, 9042090593477, 909510089895106, 78614554935810312, 5968834286653520880, 404692851931445802070, 24817586014857838296353, 1390653203986844241431276

Offset

1,1

Comments

Column 3 of A203896

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A214356 A237806 A061364 * A088164 A234699 A204639

Adjacent sequences: A203888 A203889 A203890 * A203892 A203893 A203894

Keyword

nonn

Author

R. H. Hardin Jan 07 2012

Status

approved