%I #3 Mar 30 2012 16:50:30
%S 1,2,6,15,41,106,288,777,2113,5772,15817,43422,119444,329003,907181,
%T 2503971,6916822,19120891,52892130,146399126,405437427
%N Number of bridged bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition).
%D Camden A. Parks and James B. Hendrickson, Enumeration of monocyclic and bicyclic carbon skeletons, J. Chem. Inf. Comput. Sci., vol. 31, 334-339 (1991).
%K nonn
%O 5,2
%A _N. J. A. Sloane_, Aug 27 2006
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