Number of labeled rooted trees with n leaves in which the degrees of the root and all internal nodes are >= 3.
A052526
Number of labeled rooted trees with n leaves in which the degrees of the root and all internal nodes are >= 3.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =11a(6) =36a(7) =372a(8) =2311a(9) =26252a(10) =243893a(11) =3173281a(12) =38916879a(13) =583922418a(14) =8808814262a(15) =151530476047
External references
- oeis: A052526