Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1001-1111-0100 pattern in any orientation.
A146832
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1001-1111-0100 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =17a(7) =21a(8) =581a(9) =1207a(10) =12059a(11) =30137a(12) =679043a(13) =2023503a(14) =130582091a(15) =480701723a(16) =55819325375a(17) =254177839595
External references
- oeis: A146832