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 A038062 #11 Dec 19 2015 12:21:19 %S A038062 1,3,9,81,1296,30375,944784,36756909,1719926784,94143178827, %T A038062 5904900000000,417703359617577,32905425960566784,2857282535902251951, %U A038062 271165225379757133824,27925772039747314453125 %N A038062 Number of labeled trees with 3-colored nodes. %H A038062 <a href="/index/Tra#trees">Index entries for sequences related to trees</a> %F A038062 A038061/n. E.g.f. B(3x) where B(x) is e.g.f. of A000272. %Y A038062 Cf. A000272, A038055-A038061. %K A038062 nonn %O A038062 0,2 %A A038062 _Christian G. Bower_, Jan 04 1999