Number of digraphs on n unlabeled nodes whose strongly connected components are directed cycles or single vertices.
A361584
Number of digraphs on n unlabeled nodes whose strongly connected components are directed cycles or single vertices.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =12a(4) =88a(5) =1239a(6) =36540a(7) =2226595a(8) =277421616a(9) =69974281748
External references
- oeis: A361584