Search: id:A144240 Results 1-1 of 1 results found. %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 Search completed in 0.001 seconds