Number of series-parallel networks with n labeled edges, multiple edges not allowed.
A058381
Number of series-parallel networks with n labeled edges, multiple edges not allowed.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =4a(4) =20a(5) =156a(6) =1472a(7) =17396a(8) =239612a(9) =3827816a(10) =69071272a(11) =1394315088a(12) =31081310944a(13) =758901184432
External references
- oeis: A058381