Number of series-reduced labeled trees with n nodes.
A108919
Number of series-reduced labeled trees with n nodes.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =13a(5) =51a(6) =601a(7) =4803a(8) =63673a(9) =775351a(10) =12186061a(11) =196158183a(12) =3661759333a(13) =72413918019
External references
- oeis: A108919