T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock.

A236451

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock.

Terms

    a(0) =256a(1) =2116a(2) =2116a(3) =17258a(4) =25172a(5) =17258a(6) =136208a(7) =280436a(8) =280436a(9) =136208a(10) =1080984a(11) =3081484a(12) =4535608a(13) =3081484a(14) =1080984a(15) =8564392a(16) =33804644a(17) =66621676a(18) =66621676a(19) =33804644a(20) =8564392a(21) =67897642a(22) =372302304a(23) =1010208094a(24) =1449135596a(25) =1010208094

External references