Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.

A233888

Number of (n+1)X(4+1) 0..6 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) =4292a(1) =47732a(2) =496200a(3) =5859504a(4) =64285728a(5) =759799284a(6) =8442821772a(7) =99513692668

External references