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

A237205

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

Terms

    a(0) =1160a(1) =8396a(2) =59386a(3) =472096a(4) =3795060a(5) =31758656a(6) =268073808a(7) =2299621682a(8) =19798836956a(9) =171720524760

External references