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 A010864 #24 Aug 18 2018 21:30:42 %S A010864 25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25, %T A010864 25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25, %U A010864 25,25,25,25,25,25,25,25 %N A010864 Constant sequence: a(n) = 25. %H A010864 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a> %H A010864 <a href="/index/Di#divseq">Index to divisibility sequences</a> %H A010864 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1). %F A010864 G.f.: 25/(1-x). - _Vincenzo Librandi_, Jan 16 2012 %K A010864 nonn,easy %O A010864 0,1 %A A010864 _N. J. A. Sloane_