Number of unlabeled digraphs with n nodes containing a global sink (or source), self-loops allowed.

A351052

Number of unlabeled digraphs with n nodes containing a global sink (or source), self-loops allowed.

Terms

    a(0) =1a(1) =2a(2) =18a(3) =440a(4) =32404a(5) =7423456a(6) =5473328160

External references