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A223624 Number of nX6 0..1 arrays with row sums nondecreasing and column sums unimodal 0
22, 643, 15778, 371569, 8313608, 180713080, 3825884676, 79714938310, 1637218009622, 33311576729949, 672361927867110 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A223625

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A084271 A092086 A218478 * A230836 A137262 A300137

Adjacent sequences:  A223621 A223622 A223623 * A223625 A223626 A223627

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 24 2013

STATUS

approved

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Last modified June 25 16:08 EDT 2022. Contains 354851 sequences. (Running on oeis4.)