A204338 Number of (n+1)X8 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

2968107693, 2182013404785, 1056518851863222, 294839891112676990, 51487565527487424610

Offset

1,1

Comments

Column 7 of A204339

Links

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

Example

Some solutions for n=4
..0..6..5..4..4..4..4..4....6..4..3..3..4..4..4..5....4..7..4..6..4..5..4..4
..4..5..6..7..7..7..7..7....4..6..7..7..7..7..7..7....7..4..7..5..7..6..7..7
..2..7..6..7..7..7..7..7....5..6..7..7..7..7..7..7....4..7..5..7..6..7..7..7
..3..6..7..7..7..7..7..7....4..7..7..7..7..7..7..7....6..5..7..6..7..7..7..7
..2..7..7..7..7..7..7..7....4..7..7..7..7..7..7..7....4..7..6..7..7..7..7..7

Crossrefs

Sequence in context: A072017 A116577 A067615 * A185889 A186093 A357461

Adjacent sequences: A204335 A204336 A204337 * A204339 A204340 A204341

Keyword

nonn

Author

R. H. Hardin Jan 14 2012

Status

approved