%I
%S 0,1,2,5,15,47,149,489
%N Total number of multiple edges in all essentially parallel seriesparallel networks with n unlabeled edges, multiple edges allowed.
%D J. W. Moon, Some enumerative results on seriesparallel networks, Annals Discrete Math., 33 (1987), 199226 (the sequence M_p(n)*p_pi).
%H <a href="/index/Mo#Moon87">Index entries for sequences mentioned in Moon (1987)</a>
%F Reference gives g.f.
%K nonn,easy,nice,more
%O 0,3
%A _N. J. A. Sloane_, Dec 20 2000
