Number of unlabeled digraphs on n nodes up to reversing the arcs.
A054933
Number of unlabeled digraphs on n nodes up to reversing the arcs.
Terms
- a(0) =1a(1) =3a(2) =13a(3) =144a(4) =5158a(5) =778084a(6) =441288796a(7) =896699384640
External references
- oeis: A054933