A180755 Half the number of nX6 binary arrays with each element equal to at least two neighbors.

0, 5, 7, 70, 410, 2986, 20205, 141313, 986376, 6925085, 48597819, 341209889, 2395331138, 16816717757, 118065063145, 828920971395, 5819799452720, 40860590480721, 286880736650848, 2014179680712444, 14141486042579555

Offset: 1

Author

R. H. Hardin Sep 20 2010

Keywords

• nonn

Comments

Column 6 of A180760

Links

• R. H. Hardin, Table of n, a(n) for n=1..199