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

A236983

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

Terms

    a(0) =11388a(1) =85064a(2) =556322a(3) =6304776a(4) =59328026a(5) =750471960a(6) =8305755418a(7) =107840744274

External references