Number of (n+1)X(4+1) 0..3 arrays with the upper median unequal to the lower median in every 2X2 subblock.

A235846

Number of (n+1)X(4+1) 0..3 arrays with the upper median unequal to the lower median in every 2X2 subblock.

Terms

    a(0) =166816a(1) =30740652a(2) =5778908484

External references