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

A237483

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

Terms

    a(0) =1464a(1) =15898a(2) =180730a(3) =2218016a(4) =27849668a(5) =361041844a(6) =4724446414a(7) =62643477220a(8) =833223795952

External references