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A266932 Number of nX5 binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing. 1
2, 5, 14, 52, 210, 871, 3566, 13899, 50841, 173470, 553021, 1652621, 4652572, 12400392, 31443461, 76188169, 177120011, 396481264, 857322183, 1795814448, 3653191802, 7233526075, 13969016501, 26357103244, 48668165412, 88071764221 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A266935.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..34

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A266935.

Sequence in context: A306892 A115275 A000679 * A243787 A275825 A081439

Adjacent sequences:  A266929 A266930 A266931 * A266933 A266934 A266935

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 06 2016

STATUS

approved

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Last modified January 28 22:35 EST 2020. Contains 331328 sequences. (Running on oeis4.)