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

A236500

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

Terms

    a(0) =256a(1) =2228a(2) =2228a(3) =19856a(4) =30916a(5) =19856a(6) =171436a(7) =404844a(8) =404844a(9) =171436a(10) =1503360a(11) =5217808a(12) =8124056a(13) =5217808a(14) =1503360a(15) =13078180a(16) =67922876a(17) =142835932a(18) =142835932a(19) =67922876a(20) =13078180a(21) =114229184a(22) =889064156a(23) =2727955642a(24) =4018409892a(25) =2727955642

External references