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

1,2

Comments

Column 8 of A180760

Links

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

Crossrefs

Sequence in context: A247837 A346022 A227172 * A214488 A247836 A159670

Adjacent sequences: A180754 A180755 A180756 * A180758 A180759 A180760

Keyword

nonn

Author

R. H. Hardin Sep 20 2010

Status

approved