A223667 Number of nX6 0..1 arrays with rows, diagonals and antidiagonals unimodal.

22, 484, 5913, 49561, 364959, 2715255, 21347949, 176196273, 1493319998, 12752674920, 108775648521, 925164714995, 7854870418554, 66655562324108, 565717490459602, 4802772296256892, 40782742978895315, 346338434126201765

Offset: 1

Author

R. H. Hardin Mar 25 2013

Keywords

• nonn

Comments

Column 6 of A223669

Examples

			Some solutions for n=4
..0..1..1..0..0..0....0..1..1..0..0..0....0..0..0..0..0..0....0..1..1..1..0..0
..0..0..1..1..1..1....0..1..1..1..1..1....0..0..0..0..0..0....1..1..1..1..0..0
..0..1..1..1..1..1....1..1..1..0..0..0....0..1..1..1..1..0....0..1..1..1..1..0
..0..0..0..1..1..1....0..0..0..0..0..0....0..1..1..1..0..0....0..1..0..0..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210