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

A233639

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

Terms

    a(0) =324a(1) =3004a(2) =26192a(3) =238570a(4) =2118568a(5) =19123682a(6) =170872144a(7) =1536664586a(8) =13763062452a(9) =123586823454

External references