Number of (n+1)X(6+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.

A233915

Number of (n+1)X(6+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.

Terms

    a(0) =145004a(1) =4908404a(2) =148503096a(3) =5494251884a(4) =179779430264

External references