Number of distinct characteristic polynomials among all simple undirected graphs on n nodes.

A082104

Number of distinct characteristic polynomials among all simple undirected graphs on n nodes.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =11a(4) =33a(5) =151a(6) =988a(7) =11453a(8) =247357a(9) =10608128a(10) =901029366a(11) =148187993520

External references