T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12.

A234405

T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12.

Terms

    a(0) =432a(1) =5646a(2) =5646a(3) =66806a(4) =204320a(5) =66806a(6) =829594a(7) =6467216a(8) =6467216a(9) =829594a(10) =10158894a(11) =220295536a(12) =496111352a(13) =220295536a(14) =10158894a(15) =125160846a(16) =7430382692a(17) =44527292660a(18) =44527292660a(19) =7430382692a(20) =125160846a(21) =1539127906a(22) =252526817148

External references