Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-1000-1111 pattern in any orientation.
A146685
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-1000-1111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =7a(6) =19a(7) =43a(8) =167a(9) =933a(10) =5533a(11) =35651a(12) =275619a(13) =2803985a(14) =35280241a(15) =511587387a(16) =8841277573a(17) =187861018789
External references
- oeis: A146685