Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1100-0111-0010 pattern in any orientation.
A147148
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1100-0111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =235a(9) =445a(10) =4871a(11) =12101a(12) =166515a(13) =463179a(14) =23308741a(15) =79047775a(16) =13213403375a(17) =57895847749
External references
- oeis: A147148