%I A002840 M0339 N0129
%S A002840 1,0,1,2,2,4,12,22,58,158,448,1342,4199,13384,43708,144810,
%T A002840 485704,1645576,5623571,19358410,67078828,233800162,819267086,2884908430
%N A002840 Number of polyhedral graphs with n edges.
%D A002840 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A002840 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002840 M. B. Dillencourt, Polyhedra of small orders and their Hamiltonian properties. 
               Tech. Rep. 92-91, Info. and Comp. Sci. Dept., Univ. Calif. Irvine, 
               1992.
%D A002840 Duijvestijn, A. J. W.; Federico, P. J.; The number of polyhedral (3-connected 
               planar) graphs. Math. Comp. 37 (1981), no. 156, 523-532.
%D A002840 P. J. Federico, Enumeration of polyhedra: the number of 9-hedra, J. Combin. 
               Theory, 7 (1969), 155-161.
%D A002840 T. R. S. Walsh, personal communication.
%H A002840 G. P. Michon, <a href="http://www.numericana.com/data/polyhedra.htm">
               Counting Polyhedra</a>
%H A002840 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PolyhedralGraph.html">Link to a section of The World of Mathematics.</
               a>
%Y A002840 Cf. A002841, A000944.
%Y A002840 Sequence in context: A112362 A134720 A019225 this_sequence A007181 A100238 
               A098774
%Y A002840 Adjacent sequences: A002837 A002838 A002839 this_sequence A002841 A002842 
               A002843
%K A002840 nonn,nice
%O A002840 6,4
%A A002840 N. J. A. Sloane (njas(AT)research.att.com).