Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 10001-11111 pattern in any orientation.
A147090
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 10001-11111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =13a(6) =25a(7) =51a(8) =215a(9) =1059a(10) =6091a(11) =34649a(12) =217439a(13) =1714483a(14) =16064320a(15) =187492557
External references
- oeis: A147090