Number of (n+1) X (3+1) 0..4 arrays with every 2 X 2 subblock having the sum of the absolute values of the edge differences equal to 8.

A234977

Number of (n+1) X (3+1) 0..4 arrays with every 2 X 2 subblock having the sum of the absolute values of the edge differences equal to 8.

Terms

    a(0) =14420a(1) =684282a(2) =29606864a(3) =1373159910a(4) =62993589692

External references