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 A013908 #16 Sep 08 2022 08:44:38 %S A013908 12167,78310985281,504036361936467383,3244150909895248285300369, %T A013908 20880467999847912034355032910567, %U A013908 134393854047545109686936775588697536481,865004941741938633917747707002884268046728983,5567468501746134532846058029734065138452687762629169 %N A013908 a(n) = 23^(5*n + 3). %H A013908 Vincenzo Librandi, <a href="/A013908/b013908.txt">Table of n, a(n) for n = 0..50</a> %H A013908 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a> %H A013908 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (6436343). %F A013908 a(n) = 6436343*a(n-1), a(0)=12167. - _Vincenzo Librandi_, May 29 2011 %o A013908 (Magma) [23^(5*n+3): n in [0..10]]; // _Vincenzo Librandi_, May 29 2011 %Y A013908 Cf. A009967. %K A013908 nonn %O A013908 0,1 %A A013908 _N. J. A. Sloane_