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 A013854 #20 Feb 28 2025 09:39:55 %S A013854 10,1000000,100000000000,10000000000000000,1000000000000000000000, %T A013854 100000000000000000000000000,10000000000000000000000000000000, %U A013854 1000000000000000000000000000000000000,100000000000000000000000000000000000000000,10000000000000000000000000000000000000000000000 %N A013854 a(n) = 10^(5*n + 1). %H A013854 Vincenzo Librandi, <a href="/A013854/b013854.txt">Table of n, a(n) for n = 0..50</a> %H A013854 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>. %H A013854 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (100000). %F A013854 From _Elmo R. Oliveira_, Feb 27 2025: (Start) %F A013854 G.f.: 10/(1 - 100000*x). %F A013854 E.g.f.: 10*exp(100000*x). %F A013854 a(n) = A011557(A016861(n)). (End) %t A013854 10^(5*Range[0, 10] + 1) (* _Paolo Xausa_, Feb 28 2025 *) %o A013854 (Magma) [10^(5*n+1): n in [0..10]]; // _Vincenzo Librandi_, Jul 08 2011 %Y A013854 Subsequence of A011557. %Y A013854 Cf. A016861. %K A013854 nonn,easy %O A013854 0,1 %A A013854 _N. J. A. Sloane_