Number of (n+1)X(3+1) 0..3 arrays with the minimum plus the maximum equal to the lower median plus the upper median in every 2X2 subblock.

A236005

Number of (n+1)X(3+1) 0..3 arrays with the minimum plus the maximum equal to the lower median plus the upper median in every 2X2 subblock.

Terms

    a(0) =2960a(1) =41608a(2) =587908a(3) =8623452a(4) =130105204a(5) =2020106076a(6) =32207456576a(7) =526051660468

External references