Number of (n+1)X3 0..3 arrays with no 2X2 subblock having the same number of equal edges as its horizontal or vertical neighbors, and new values 0..3 introduced in row major order.

A205348

Number of (n+1)X3 0..3 arrays with no 2X2 subblock having the same number of equal edges as its horizontal or vertical neighbors, and new values 0..3 introduced in row major order.

Terms

    a(0) =110a(1) =1750a(2) =30904a(3) =544616a(4) =9559986a(5) =168343322a(6) =2962323362a(7) =52122083398a(8) =917209854720

External references