Number of (n+1) X 6 0..3 arrays with every 2 X 2 subblock trace equal to some horizontal or vertical neighbor 2 X 2 subblock trace.

A185803

Number of (n+1) X 6 0..3 arrays with every 2 X 2 subblock trace equal to some horizontal or vertical neighbor 2 X 2 subblock trace.

Terms

    a(0) =166272a(1) =104024384a(2) =29410603520

External references