Number of (n+1)X4 0..3 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order.
A204567
Number of (n+1)X4 0..3 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order.
Terms
- a(0) =256a(1) =6112a(2) =158981a(3) =4220392a(4) =112592256a(5) =3007468553a(6) =80358249724
External references
- oeis: A204567