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A223629 Number of 5Xn 0..1 arrays with row sums nondecreasing and column sums unimodal 1
6, 120, 2114, 35413, 557432, 8313608, 119085643, 1641434223, 21968751393, 286602316306, 3658119581129, 45840023294595, 565061162009598, 6868648590255302, 82463672861242529, 979223612521821703 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A223625

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..19

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A048604 A001516 A026337 * A065888 A246191 A246611

Adjacent sequences:  A223626 A223627 A223628 * A223630 A223631 A223632

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 24 2013

STATUS

approved

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Last modified January 22 01:28 EST 2022. Contains 350481 sequences. (Running on oeis4.)