A184464 Half the number of (n+1)X7 binary arrays with equal numbers of majority one 2X2 subblocks and majority zero 2X2 subblocks.

1212, 89908, 9016218, 986306398, 112210745828, 13061240432092, 1543735290815166, 184478487695574108, 22229843879368216722, 2696248965558609295818, 328747622872812708911124

Offset: 1

Author

R. H. Hardin Jan 15 2011

Keywords

• nonn

Comments

Column 6 of A184467

Examples

			Some solutions for 3X7
..0..1..1..1..0..0..0....0..0..0..0..0..0..1....0..1..1..1..0..0..0
..1..0..0..1..1..1..1....1..1..0..1..1..1..0....0..0..1..0..0..1..1
..1..0..0..0..0..0..0....0..0..1..0..1..1..0....1..0..1..1..1..0..1
...
...E..E..P..P..E..E.......E..M..M..E..E..E.......M..P..P..M..M..E...
...E..M..M..E..E..E.......E..E..E..P..P..E.......M..E..P..E..E..P...
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..53