Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having zero permanent.
A206247
Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having zero permanent.
Terms
- a(0) =49a(1) =8029a(2) =1364224a(3) =4556324929
External references
- oeis: A206247