Permanent of the n-th principal submatrix of (A134446 in square format).

A203264

Permanent of the n-th principal submatrix of (A134446 in square format).

Terms

    a(0) =1a(1) =4a(2) =72a(3) =2304a(4) =172800a(5) =18662400a(6) =3657830400a(7) =936404582400

External references