Number of labeled connected graphs covering n vertices with at least one endpoint (vertex of degree 1).

A327362

Number of labeled connected graphs covering n vertices with at least one endpoint (vertex of degree 1).

Terms

    a(0) =0a(1) =0a(2) =1a(3) =3a(4) =28a(5) =475a(6) =14646a(7) =813813a(8) =82060392a(9) =15251272983

External references