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 A087235 #23 Sep 04 2018 09:27:43 %S A087235 8,33,120,360,1134,3094,8472,24300,64720,175197,481452,1304719, %T A087235 3524654,9560100,25874784,70119985,189969354,514278263,1394199300, %U A087235 3779856633,10246936436,27788573803,75370126416,204475055200,554805820556,1505578026105,4086199303004,11091501633037 %N A087235 a(n) is the largest number in the set of solutions to n=x/pi(x), where pi(x)=A000720(x). %H A087235 Giovanni Resta, <a href="/A087235/b087235.txt">Table of n, a(n) for n = 2..50</a> %H A087235 Robert T. Harger and William L. Hightower, <a href="http://www.jstor.org/stable/25653721">An Interesting Property of x/π(x)</a>, The College Mathematics Journal Vol. 40, No. 3 (May 2009), pp. 213-214. %F A087235 a(n) = Max{x; n*pi(x)=x}. %e A087235 n=22: list of solutions = {10246935644, 10246935842, 10246935864, 10246935974, 10246936106, 10246936128, 10246936370, 10246936436}, so a(22)=10246936436. %Y A087235 Cf. A038623, A038624, A038625, A038626, A038627, A057809. %K A087235 nonn %O A087235 2,1 %A A087235 _Labos Elemer_, Sep 04 2003 %E A087235 More terms from _David Radcliffe_, Sep 10 2014 %E A087235 a(29) corrected and a(30)-a(50) obtained from the values of A038625 computed by _Jan Büthe_. - _Giovanni Resta_, Sep 01 2018