A189902 Number of n X 6 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

52, 2704, 140608, 3833322, 109264923, 2719427244, 63149685928, 1435483321366, 31396505039678, 678724157124848, 14470229604883676, 305997066532246950, 6438705507919059232, 134891856265337289564, 2819613055895413412294

Offset: 1

Author

R. H. Hardin, May 01 2011

Keywords

• nonn

Comments

Column 6 of A189905.

Examples

			Some solutions for 4 X 6
..0..0..0..0..0..0....0..0..0..0..0..1....0..0..0..0..0..1....0..0..0..0..0..0
..0..1..0..1..0..0....1..1..1..1..0..1....1..0..1..1..1..1....1..0..1..0..0..0
..0..1..0..0..1..0....0..0..0..1..0..1....0..1..0..0..1..0....0..0..1..0..0..0
..0..0..0..0..0..0....0..1..1..1..0..0....0..0..1..0..0..0....1..0..1..0..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..200

Crossrefs

Cf. A189905.