Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-0111-0101 pattern in any orientation.
A147222
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-0111-0101 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =21a(6) =45a(7) =251a(8) =1189a(9) =5949a(10) =38111a(11) =398367a(12) =3732199
External references
- oeis: A147222