Number of (n+1)X(2+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11.

A234211

Number of (n+1)X(2+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11.

Terms

    a(0) =308a(1) =1540a(2) =7348a(3) =38424a(4) =190188a(5) =1029224a(6) =5219076a(7) =28931288a(8) =148987468a(9) =838864504a(10) =4360734660a(11) =24788769080a(12) =129580167628a(13) =740795388728

External references