Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11.

A233787

Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11.

Terms

    a(0) =720a(1) =3932a(2) =20816a(3) =125976a(4) =716768a(5) =4674280a(6) =27765752a(7) =190316292a(8) =1159969064a(9) =8197609072a(10) =50708447672a(11) =364761775656

External references