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A202559 Number of nX7 0,1 arrays with the row and column sums nondecreasing 0
8, 293, 9520, 342295, 12176148, 436020774, 15635171834, 557315843073, 19890838348436, 707996212911950, 25194289287709052 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A202560

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=3

..0..1..0..0..1..0..0....0..0..0..0..1..0..0....0..0..1..0..1..0..1

..1..0..0..0..1..1..1....0..0..0..1..0..0..0....0..1..0..1..1..1..0

..0..0..1..1..0..1..1....0..1..1..0..0..1..1....1..1..1..1..0..1..1

CROSSREFS

Sequence in context: A065141 A190840 A000842 * A232372 A264248 A326013

Adjacent sequences:  A202556 A202557 A202558 * A202560 A202561 A202562

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 21 2011

STATUS

approved

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Last modified August 15 16:57 EDT 2022. Contains 356148 sequences. (Running on oeis4.)