Number of unlabeled 5-ary cacti having n polygons.
A054363
Number of unlabeled 5-ary cacti having n polygons.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =15a(4) =85a(5) =510a(6) =4051a(7) =33130a(8) =291925a(9) =2661255a(10) =25059670a(11) =241724380a(12) =2379912355a(13) =23833198140a(14) =242173108050
External references
- oeis: A054363