Number of (n+1)X5 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.

A209810

Number of (n+1)X5 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.

Terms

    a(0) =930a(1) =25505a(2) =712829a(3) =20873080a(4) =617966001a(5) =18479672376a(6) =555404234236

External references