Total number of interior vertices in the multigraphs of all oriented series-parallel networks with n edges.
A339232
Total number of interior vertices in the multigraphs of all oriented series-parallel networks with n edges.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =23a(4) =99a(5) =433a(6) =1880a(7) =8238a(8) =36202a(9) =159898a(10) =708517a(11) =3150128a(12) =14042620a(13) =62751693a(14) =280997846a(15) =1260635337a(16) =5664870696a(17) =25493707908a(18) =114882350739a(19) =518318733052
External references
- oeis: A339232