Number of (n+1)X7 0..2 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace.

A186138

Number of (n+1)X7 0..2 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace.

Terms

    a(0) =1304424a(1) =297562572a(2) =71683161894

External references