A147068 - OEIS

A147068

Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 10000-11111-00001 pattern in any orientation.

%I #4 Mar 31 2012 12:35:15

%S 1,1,1,1,1,1,7,9,21,27,607,1167,17769,40363,559713,1434237,48361407,

%T 146868985,7834524479,27923748641,1943918391505,8015840240133,

%U 1237965320138777,6025367765747539

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 10000-11111-00001 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.0.0.0.0.0.0.0

%e .1.1.0.0.0.0.1.1

%e .0.1.0.0.0.0.1.0

%e .0.1.1.0.0.1.1.0

%K nonn

%O 1,7

%A _R. H. Hardin_, Nov 04 2008