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

A210170

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

Terms

    a(0) =910a(1) =48577a(2) =2266901a(3) =101095392a(4) =4397691548a(5) =188568419989

External references