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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
OFFSET
1,1
COMMENTS
Column 5 of A266935.
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 06 2016
STATUS
approved