%I A144240
%S A144240 1,2,1,5,4,10,32,89,174,2023,3612,30003,170438,1387640,7339317,
%T A144240 153956133,877660696,18345445123,211690980458,5237531076262
%N A144240 Number of n X n binary arrays, symmetric about both diagonal and antidiagonal, 
               with every 1 adjacent to at least one other 1 both bishopwise and 
               rookwise but with no three 1s in a row bishopwise or rookwise.
%Y A144240 Sequence in context: A019473 A056605 A091802 this_sequence A119914 A152192 
               A120924
%Y A144240 Adjacent sequences: A144237 A144238 A144239 this_sequence A144241 A144242 
               A144243
%K A144240 nonn
%O A144240 1,2
%A A144240 Ron Hardin (rhhardin(AT)att.net), Sep 15 2008