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A180757 Half the number of nX8 binary arrays with each element equal to at least two neighbors 1
0, 13, 31, 658, 8840, 141313, 2141384, 33329847, 514990479, 7988200496, 123822198215, 1920693558801, 29793765165720, 462205529321051, 7170401050696078, 111238701384104135, 1725707750909016718 (list; graph; refs; listen; history; text; internal format)
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

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Last modified August 13 11:29 EDT 2022. Contains 356091 sequences. (Running on oeis4.)