This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A058480 #5 Mar 30 2012 16:48:55 %S A058480 0,0,1,8,78,944,13760,235248,4620224,102551296,2539240416,69398978560, %T A058480 2075328010624,67408188246528,2363279141726464,88952164594807808, %U A058480 3577709564478865920,153136329382704201728,6950244396227548178432 %N A058480 Total number of interior nodes in all series-parallel networks with n labeled edges, multiple edges allowed. %D A058480 J. W. Moon, Some enumerative results on series-parallel networks, Annals Discrete Math., 33 (1987), 199-226. %H A058480 <a href="/index/Mo#Moon87">Index entries for sequences mentioned in Moon (1987)</a> %Y A058480 A058480 = A058478 + A058479. %K A058480 nonn %O A058480 0,4 %A A058480 _N. J. A. Sloane_, Dec 20 2000