a(n) is the number of labeled 2-connected planar graphs with n edges.
A291841
a(n) is the number of labeled 2-connected planar graphs with n edges.
Terms
- a(0) =1a(1) =3a(2) =18a(3) =131a(4) =1180a(5) =12570a(6) =154525a(7) =2150748a(8) =33399546a(9) =571979428a(10) =10699844995a(11) =216921707622
External references
- oeis: A291841