Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2.
A251202
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2.
Terms
- a(0) =40a(1) =1246a(2) =102811a(3) =27920380a(4) =29868134632
External references
- oeis: A251202