Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-0100-0111-0001 pattern in any orientation.
A147194
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-0100-0111-0001 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =63a(9) =109a(10) =781a(11) =1575a(12) =12401a(13) =27045a(14) =346129a(15) =858707a(16) =43136869a(17) =130994019a(18) =11875535419a(19) =43413437829
External references
- oeis: A147194