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 A173838 #8 Oct 05 2019 04:42:56 %S A173838 1,2,1,38,43,242,67,1238,1289,2278,1657,14662,68321 %N A173838 A sequence of coefficients of 3^n, when x = x_oj. %D A173838 Appendix to " A theorem a la Ramanujan " - Joint meeting of AMS - BENELUX, '96. %Y A173838 Cf. A173252. %K A173838 nonn,uned,obsc %O A173838 1,2 %A A173838 _A.K. Devaraj_, Feb 26 2010