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A223778
Number of nX3 0..1 arrays with row sums unimodal and column sums inverted unimodal
1
7, 53, 330, 1809, 8940, 41257, 180670, 756800, 3066706, 12093628, 46563397, 175879412, 653526033, 2392564820, 8651185991, 30941217363, 109551653219, 384528798543, 1339204256650, 4630162104037, 15905909415604, 54322204287215
OFFSET
1,1
COMMENTS
Column 3 of A223782
LINKS
EXAMPLE
Some solutions for n=3
..1..1..1....1..1..1....1..0..0....1..0..0....1..0..0....1..1..1....0..1..0
..1..1..0....1..0..1....1..1..0....1..1..0....0..0..1....0..1..0....1..0..0
..0..0..1....0..1..1....1..1..0....0..0..1....0..1..0....0..0..1....0..0..1
CROSSREFS
Sequence in context: A141911 A200766 A056590 * A223712 A065542 A279269
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 27 2013
STATUS
approved