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

A236006

Number of (n+1)X(4+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) =17464a(1) =389520a(2) =8623452a(3) =199639388a(4) =4771399876a(5) =118118574840

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