Number of different values taken by the permanent of a real nonsingular (0,1)-matrix of order n.

A089475

Number of different values taken by the permanent of a real nonsingular (0,1)-matrix of order n.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =9a(4) =31a(5) =149a(6) =888a(7) =6355

External references