%I A145952
%S A145952 1,1,9,33,333,7127,205501,11166945,1122739259,190153543115,
%T A145952 56969419979245,30406497496961445,28371939730808217655
%N A145952 Number of n X n binary arrays with all ones connected only in a zee 1,
               1 1,2 2,2 2,3 in any orientation.
%e A145952 Maximal 8 X 8 example
%e A145952 .0.1.0.1.1.0.0.0
%e A145952 .1.1.0.0.1.1.0.0
%e A145952 .1.0.0.0.0.0.1.0
%e A145952 .0.1.0.1.1.0.1.1
%e A145952 .0.1.1.0.1.1.0.1
%e A145952 .0.0.1.0.0.0.1.0
%e A145952 .1.1.0.1.1.0.1.1
%e A145952 .0.1.1.0.1.1.0.1
%Y A145952 Sequence in context: A046997 A013488 A063423 this_sequence A145925 A028568 
               A044086
%Y A145952 Adjacent sequences: A145949 A145950 A145951 this_sequence A145953 A145954 
               A145955
%K A145952 nonn
%O A145952 1,3
%A A145952 Ron Hardin (rhhardin(AT)att.net), Oct 25 2008