Number of (n+2)X(n+2) symmetric binary matrices without the pattern 1 0 1 antidiagonally.
A190601
Number of (n+2)X(n+2) symmetric binary matrices without the pattern 1 0 1 antidiagonally.
Terms
- a(0) =48a(1) =576a(2) =11520a(3) =403200a(4) =25401600a(5) =2743372800a(6) =526727577600
External references
- oeis: A190601