Number of (n+1)X2 0..3 arrays with permanents of 2X2 subblocks differing from horizontal and vertical neighbor permanents.

A205033

Number of (n+1)X2 0..3 arrays with permanents of 2X2 subblocks differing from horizontal and vertical neighbor permanents.

Terms

    a(0) =256a(1) =3184a(2) =39419a(3) =484930a(4) =5968388a(5) =73466056a(6) =904294268a(7) =11130780320a(8) =137006955354

External references