Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1100-0111-0010 pattern in any orientation.
A147044
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-1100-0111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =57a(9) =101a(10) =713a(11) =1409a(12) =16209a(13) =36805a(14) =1045937a(15) =2912737a(16) =187227785a(17) =638780181a(18) =63010306161a(19) =259616518697
External references
- oeis: A147044