Number of unlabeled 5-gonal cacti having n polygons.
A054365
Number of unlabeled 5-gonal cacti having n polygons.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =17a(5) =102a(6) =811a(7) =6626a(8) =58385a(9) =532251a(10) =5011934a(11) =48344880a(12) =475982471a(13) =4766639628a(14) =48434621610a(15) =498363430232
External references
- oeis: A054365