Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1101-0111 pattern in any orientation.
A147165
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1101-0111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =5a(6) =17a(7) =39a(8) =131a(9) =669a(10) =4577a(11) =33447a(12) =274545
External references
- oeis: A147165