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 A016659 #20 May 15 2019 03:03:36
%S A016659 3,5,8,3,5,1,8,9,3,8,4,5,6,1,1,0,0,0,1,6,2,4,9,5,4,7,1,6,7,6,1,4,0,4,
%T A016659 5,4,5,4,4,5,9,8,1,3,8,4,3,6,6,0,0,9,4,1,1,7,1,0,7,4,8,6,8,6,2,6,1,7,
%U A016659 7,5,8,3,0,3,7,6,6,0,7,3,6,4,9,5,8,9,5,8,1,6,3,6,2,0,3,0,1,5,5
%N A016659 Decimal expansion of log(36).
%D A016659 M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 2.
%H A016659 Harry J. Smith, <a href="/A016659/b016659.txt">Table of n, a(n) for n = 1..20000</a>
%H A016659 M. Abramowitz and I. A. Stegun, eds., <a href="http://www.convertit.com/Go/ConvertIt/Reference/AMS55.ASP">Handbook of Mathematical Functions</a>, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].
%H A016659 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%e A016659 3.583518938456110001624954716761404545445981384366009411710748686261775....
%t A016659 RealDigits[Log[36], 10, 120][[1]] (* _Vincenzo Librandi_, Jun 21 2015 *)
%o A016659 (PARI) default(realprecision, 20080); x=log(36); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b016659.txt", n, " ", d)); \\ _Harry J. Smith_, May 21 2009
%Y A016659 Cf. A016464 (continued fraction).
%K A016659 nonn,cons
%O A016659 1,1
%A A016659 _N. J. A. Sloane_