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

A236723

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

Terms

    a(0) =550a(1) =1956a(2) =6879a(3) =26724a(4) =105206a(5) =437291a(6) =1848980a(7) =8110850a(8) =36063603a(9) =164600818a(10) =757902648a(11) =3556599303a(12) =16776665346a(13) =80262973548a(14) =385100839073

External references