Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1000-1000-1111 pattern in any orientation.
A147092
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1000-1000-1111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =59a(9) =101a(10) =919a(11) =1809a(12) =23303a(13) =53143a(14) =671599a(15) =1750531a(16) =39110451a(17) =115146065a(18) =6975569265a(19) =24305619481
External references
- oeis: A147092