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

A237690

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

Terms

    a(0) =5038a(1) =44648a(2) =408824a(3) =4021892a(4) =40288632a(5) =418287818a(6) =4418514021a(7) =47970957966a(8) =529234228994

External references