A204337 Number of (n+1)X7 0..7 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) nondecreasing in column and row directions, respectively

338578395, 167047130892, 52148478516988, 9654523816277542, 1164825006247347513

Offset

1,1

Comments

Column 6 of A204339

Links

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

Example

Some solutions for n=4
..5..4..4..4..2..3..4....5..4..4..2..2..3..5....4..4..7..4..4..6..6
..4..5..5..5..7..6..7....4..5..5..7..7..7..7....1..7..4..7..7..7..7
..4..6..6..6..6..7..6....6..5..5..7..7..7..7....4..4..7..7..7..7..7
..4..6..6..6..7..6..7....4..7..7..7..7..7..7....2..6..7..7..7..7..7
..7..5..7..7..6..7..7....4..7..7..7..7..7..7....3..7..7..7..7..7..7

Crossrefs

Sequence in context: A337385 A233703 A230085 * A113739 A159448 A316745

Adjacent sequences: A204334 A204335 A204336 * A204338 A204339 A204340

Keyword

nonn

Author

R. H. Hardin Jan 14 2012

Status

approved