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 A081368 #19 Jul 14 2015 15:29:01 %S A081368 2,71,828,1828,45904,5235360,2874713,52662497,757247093,6999595749, %T A081368 66967627724,76630353547,5945713821785,25166427427466,391932003059921, %U A081368 8174135966290435,72900334295260595,630738132328627943 %N A081368 Next n digits of e, base of the natural logarithms. %C A081368 Any zeros that immediately follow a term of this sequence are appended to that term of the sequence. %D A081368 M. J. Halm, More Sequences, Mpossibilities 83, April 2003. %D A081368 C. A. Pickover, Wonders of Numbers, p. 302 %D A081368 C. Pickover, Mazes for the Mind, St. Martin's Press, NY, 1992, p. 350. %D A081368 Clifford A. Pickover, A Passion for Mathematics, Wiley, 2005; see p. 65. %H A081368 M. J. Halm, <a href="http://untilheaven.tripod.com/id112.htm">Sequences</a> %H A081368 C. A. Pickover, "Wonders of Numbers, Adventures in Mathematics, Mind and Meaning," <a href="http://www.zentralblatt-math.org/zmath/en/search/?q=an:0983.00008&format=complete">Zentralblatt review</a> %e A081368 a(2) = 71 because the second and third digits of e are 7 and 1. %Y A081368 Cf. A001113, A152888, A202813. %Y A081368 Cf. A090897, A093473, A136517. %K A081368 easy,nonn,base %O A081368 1,1 %A A081368 _Michael Joseph Halm_, Apr 20 2003