Number of labeled rooted trees with n nodes and 2 leaves.
A055303
Number of labeled rooted trees with n nodes and 2 leaves.
Terms
- a(0) =3a(1) =36a(2) =360a(3) =3600a(4) =37800a(5) =423360a(6) =5080320a(7) =65318400a(8) =898128000a(9) =13172544000a(10) =205491686400
External references
- oeis: A055303