A180757 Half the number of nX8 binary arrays with each element equal to at least two neighbors.

0, 13, 31, 658, 8840, 141313, 2141384, 33329847, 514990479, 7988200496, 123822198215, 1920693558801, 29793765165720, 462205529321051, 7170401050696078, 111238701384104135, 1725707750909016718

Offset: 1

Author

R. H. Hardin Sep 20 2010

Keywords

• nonn

Comments

Column 8 of A180760

Links

• R. H. Hardin, Table of n, a(n) for n=1..99