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

A236819

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

Terms

    a(0) =81a(1) =303a(2) =303a(3) =1162a(4) =1791a(5) =1162a(6) =4627a(7) =10702a(8) =10702a(9) =4627a(10) =18527a(11) =66853a(12) =98380a(13) =66853a(14) =18527a(15) =75330a(16) =419301a(17) =956456a(18) =956456a(19) =419301a(20) =75330a(21) =307321a(22) =2680296a(23) =9360398a(24) =14757359a(25) =9360398a(26) =2680296a(27) =307321a(28) =1264403a(29) =17221539

External references