%I #3 Mar 31 2012 12:35:08
%S 1,1,7,3,46,11,1486,401,133777,19881,31874678,3357350,19385116046,
%T 1369262857,34450358764096,1726253429208,166321294438234974,
%U 5602768757076743,2202194423758663223078,51308572928072165575
%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only either three adjacent vertically or three adjacent horizontally.
%K nonn
%O 1,3
%A _R. H. Hardin_, Oct 17 2008