Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11000-01111-11000 pattern in any orientation.
A147453
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11000-01111-11000 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =15a(7) =9a(8) =105a(9) =33a(10) =2514a(11) =927a(12) =80722a(13) =22331a(14) =4773446a(15) =785549a(16) =420563686a(17) =56689127a(18) =72421134415a(19) =8452376637
External references
- oeis: A147453