Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-1111-0010 pattern in any orientation.
A146705
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-1111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =21a(6) =47a(7) =269a(8) =1463a(9) =8149a(10) =63091a(11) =761263a(12) =8894963a(13) =159626291a(14) =3010312887a(15) =80637272407
External references
- oeis: A146705