Number of hybrid 5-ary trees with n internal nodes.
A239108
Number of hybrid 5-ary trees with n internal nodes.
Terms
- a(0) =1a(1) =2a(2) =19a(3) =253a(4) =3920a(5) =66221a(6) =1183077a(7) =21981764a(8) =420449439a(9) =8223704755a(10) =163727846678
External references
- oeis: A239108