Total number of leaves (nodes of vertex degree 1) in all labeled trees with n nodes.
A055541
Total number of leaves (nodes of vertex degree 1) in all labeled trees with n nodes.
Terms
- a(0) =0a(1) =2a(2) =6a(3) =36a(4) =320a(5) =3750a(6) =54432a(7) =941192a(8) =18874368a(9) =430467210a(10) =11000000000a(11) =311249095212
External references
- oeis: A055541