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 A245238 #19 Aug 11 2019 13:49:20 %S A245238 0,0,4,9,1,0,9,2,5,6,4,7,7,6,0,8,3,2,3,5,2,7,3,9,1,5,0,9,2,3,6,1,5,1, %T A245238 8,6,0,3,2,4,8,4,2,9,7,4,1,7,6,9,2,9,4,5,9,7,7,9,6,1,6,5,7,5,2,8,0,3, %U A245238 0,6,3,1 %N A245238 Decimal expansion of the Dickman function evaluated at 1/4. %C A245238 Density of the fourth-root-smooth numbers. %D A245238 Karl Dickman, On the frequency of numbers containing prime factors of a certain relative magnitude, Arkiv för Matematik, Astronomi och Fysik 22A 10 (1930), pp. 1-14. %H A245238 David Broadhurst, <a href="http://arxiv.org/abs/1004.0519">Dickman polylogarithms and their constants</a> arXiv:1004.0519 [math-ph], 2010. %e A245238 F(1/4) = 0.00491092564776083235273915092361518603248429741769294597796... %t A245238 RealDigits[1-Log[4]+PolyLog[2, 1/4]+2*Log[2]^2-Pi^2/12-PolyLog[3, 1/4]-PolyLog[2, 1/4]*Log[2]-2/3*Log[2]^3+13*Zeta[3]/24,10,100,-1][[1]] (* _Vaclav Kotesovec_, Jul 15 2014 *) %o A245238 (PARI) 1-log(4)+polylog(2,1/4)+2*log(2)^2-Pi^2/12-polylog(3,1/4)-polylog(2,1/4)*log(2)-2/3*log(2)^3+13*zeta(3)/24 %Y A245238 F(1/2) = A244009, F(1/3) = A175475. %K A245238 nonn,cons %O A245238 0,3 %A A245238 _Charles R Greathouse IV_, Jul 14 2014