Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2.

A251205

Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2.

Terms

    a(0) =816a(1) =8870a(2) =102811a(3) =1273440a(4) =16687766a(5) =228610911a(6) =3233921644a(7) =46763019686a(8) =686058347195

External references