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

A236197

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

Terms

    a(0) =33546a(1) =1971348a(2) =114241318a(3) =6664918820a(4) =390311787452

External references