Number of n X n symmetric 0..3 arrays with each element equal to the product mod 4 of two of its horizontal and vertical neighbors.
A193482
Number of n X n symmetric 0..3 arrays with each element equal to the product mod 4 of two of its horizontal and vertical neighbors.
Terms
- a(0) =0a(1) =2a(2) =10a(3) =212a(4) =9201a(5) =1236536a(6) =391565294a(7) =316110683652
External references
- oeis: A193482