Number of (n+1)X(n+1) 0..4 arrays with every 2X2 subblock summing to 8.
A183643
Number of (n+1)X(n+1) 0..4 arrays with every 2X2 subblock summing to 8.
Terms
- a(0) =85a(1) =1001a(2) =10213a(3) =97145a(4) =889525a(5) =7969001
External references
- oeis: A183643