Number of labeled triangular cacti with 2n+1 nodes (n triangles).
A034941
Number of labeled triangular cacti with 2n+1 nodes (n triangles).
Terms
- a(0) =1a(1) =1a(2) =15a(3) =735a(4) =76545a(5) =13835745a(6) =3859590735
External references
- oeis: A034941