Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1100-0111-0001 pattern in any orientation.
A147262
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1100-0111-0001 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =199a(9) =377a(10) =3217a(11) =8011a(12) =104473a(13) =273171a(14) =9678777a(15) =30911627a(16) =4517322323a(17) =18623780151
External references
- oeis: A147262