Number of n-node labeled acyclic digraphs with 1 out-point.

A003025

Number of n-node labeled acyclic digraphs with 1 out-point.

Terms

    a(0) =1a(1) =2a(2) =15a(3) =316a(4) =16885a(5) =2174586a(6) =654313415a(7) =450179768312

External references