Number of 4-connected polyhedral graphs with n nodes.

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =4a(5) =10a(6) =53a(7) =292a(8) =2224a(9) =18493a(10) =167504a(11) =1571020a(12) =15151289a(13) =148864939a(14) =1485904672a(15) =15028654628a(16) =153781899708