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A223631
Number of n X n 0..1 arrays with rows, antidiagonals and columns unimodal
0
2, 16, 229, 3712, 61545, 1026377, 17224974, 291563806, 4984273228, 86086143903, 1502219415538
OFFSET
1,1
COMMENTS
Diagonal of A223637
EXAMPLE
Some solutions for n=4
..1..0..0..0....0..1..0..0....0..0..0..0....0..0..1..0....1..1..1..0
..1..1..1..1....0..0..0..0....1..1..0..0....1..1..1..1....1..1..1..1
..1..1..1..1....0..0..0..1....1..1..1..1....0..0..1..1....1..1..1..1
..0..0..0..1....0..0..0..1....0..0..1..1....0..0..0..1....1..1..1..0
CROSSREFS
Sequence in context: A377452 A233141 A377445 * A188500 A188515 A152542
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 24 2013
STATUS
approved