Number of zero-sum n X n -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.
A201796
Number of zero-sum n X n -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =85a(2) =4057a(3) =988589a(4) =722587629
External references
- oeis: A201796