Number of two-connected (or biconnected) planar graphs with n nodes.

A021103

Number of two-connected (or biconnected) planar graphs with n nodes.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =3a(5) =9a(6) =44a(7) =294a(8) =2893a(9) =36496a(10) =545808a(11) =9029737a(12) =159563559a(13) =2952794985a(14) =56589742050

External references