Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #4 Mar 31 2012 12:35:11
%S 1,1,1,1,1,1,5,17,43,75,161,539,2129,8565,42667,183445,1039641,
%T 5959305,43560487,311334093,2752013037
%N Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1010-1111-0100 pattern in any orientation.
%e Maximal 8 X 8 example
%e .0.1.0.0.1.0.1.0
%e .1.1.0.0.1.1.1.1
%e .0.1.1.0.0.1.0.0
%e .1.1.0.0.0.0.0.0
%e .0.0.0.0.0.0.1.1
%e .0.0.1.0.0.1.1.0
%e .1.1.1.1.0.0.1.1
%e .0.1.0.1.0.0.1.0
%K nonn
%O 1,7
%A _R. H. Hardin_, Nov 04 2008