Number of (n+1)X(n+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.
A239149
Number of (n+1)X(n+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.
Terms
- a(0) =1a(1) =2a(2) =868a(3) =135766a(4) =821135900
External references
- oeis: A239149