Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1111-0010 pattern in any orientation.
A146366
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =9a(7) =11a(8) =177a(9) =319a(10) =3003a(11) =6719a(12) =139575a(13) =376577a(14) =21426367a(15) =72064749a(16) =6669830837a(17) =27576142719
External references
- oeis: A146366