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

A236710

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

Terms

    a(0) =81a(1) =442a(2) =442a(3) =2464a(4) =3492a(5) =2464a(6) =13720a(7) =27406a(8) =27406a(9) =13720a(10) =76404a(11) =216340a(12) =313360a(13) =216340a(14) =76404a(15) =424600a(16) =1707838a(17) =3607280a(18) =3607280a(19) =1707838a(20) =424600a(21) =2361716a(22) =13499232a(23) =42032622a(24) =62377580a(25) =42032622a(26) =13499232a(27) =2361716a(28) =13136192a(29) =106577620

External references