A223674 Number of 7Xn 0..1 arrays with rows, diagonals and antidiagonals unimodal.

128, 16384, 371641, 2343189, 8052573, 21347949, 51831694, 124050234, 299298122, 726344042, 1747724083, 4106362589, 9335920794, 20497890026, 43553671579, 89873040155, 180673406871, 354644672067, 680755779412, 1279369459830

Offset: 1

Author

R. H. Hardin Mar 25 2013

Keywords

• nonn

Comments

Row 7 of A223669

Examples

			Some solutions for n=3
..0..0..1....0..0..1....0..0..0....0..0..0....0..0..1....0..0..1....0..0..0
..0..1..0....0..1..0....0..0..0....0..0..1....0..1..1....1..0..0....0..0..0
..1..1..1....1..0..0....1..1..1....0..0..1....1..1..0....0..1..1....0..1..1
..0..0..0....0..1..1....0..1..0....0..0..0....1..1..1....0..0..0....0..1..1
..0..0..0....0..1..0....0..0..1....0..0..0....1..0..0....0..0..0....0..0..0
..1..1..1....1..0..0....0..1..0....0..0..1....0..0..0....1..1..1....0..0..1
..1..1..0....1..0..0....0..0..0....1..1..0....0..0..0....1..0..0....0..1..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..33