Number of (n+1)X5 0..3 arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces.

A186918

Number of (n+1)X5 0..3 arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces.

Terms

    a(0) =30976a(1) =4615296a(2) =394724320a(3) =39825200832

External references