Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 10001-11111-00100 pattern in any orientation.
A147391
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 10001-11111-00100 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =9a(6) =13a(7) =37a(8) =78a(9) =329a(10) =1384a(11) =8131a(12) =38082a(13) =266677a(14) =1697877
External references
- oeis: A147391