Number of unlabeled nonseparable (or 2-connected) multigraphs with n edges and degree >= 3 at each node, loops allowed.
A360871
Number of unlabeled nonseparable (or 2-connected) multigraphs with n edges and degree >= 3 at each node, loops allowed.
Terms
- a(0) =0a(1) =0a(2) =2a(3) =4a(4) =9a(5) =20a(6) =44a(7) =113a(8) =329a(9) =1044a(10) =3622a(11) =13544a(12) =53596a(13) =223084a(14) =969158
External references
- oeis: A360871