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 A086058 #30 Feb 16 2025 08:32:50 %S A086058 1,8,2,2,8,2,5,2,4,9,6,7,8,8,4,7,0,3,2,9,9,5,3,2,8,7,1,6,2,6,1,4,6,4, %T A086058 9,4,9,4,7,5,6,9,3,1,1,8,8,9,4,8,5,0,2,1,8,3,9,3,8,1,5,6,1,3,0,3,7,0, %U A086058 9,0,9,5,6,4,4,6,4,0,1,6,6,7,5,7,2,1,9,5,3,2,5,7,3,2,3,4,4,5,3,2,4,7 %N A086058 Decimal expansion of conjectured value of delta related to the Masser-Gramain constant. %C A086058 Numerical work by Melquiond et al. (see reference) disproves Gramain's conjecture, correct bounds for the Masser-Gramain constant delta are: 1.819776 < delta < 1.819833. - _Vaclav Kotesovec_, Apr 27 2015 %D A086058 Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 7.2, p. 460. %H A086058 Guillaume Melquiond, W. Georg Nowak, Paul Zimmermann, <a href="http://www.ams.org/journals/mcom/2013-82-282/S0025-5718-2012-02635-4/S0025-5718-2012-02635-4.pdf">Numerical approximation of the Masser-Gramain constant to four decimal places</a>, Mathematics of Computation, Volume 82, Number 282, April 2013, Pages 1235-1246. %H A086058 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Masser-GramainConstant.html">Masser-Gramain Constant</a>. %F A086058 Equals 1 + A241017. %F A086058 Equals 1 + A062089/Pi. %e A086058 1.82282524967884703299532871626146494947569311889485021839381561303709... %t A086058 RealDigits[ 1 + 2*EulerGamma + 2*Log[2] + 3*Log[Pi] - 4*Log[Gamma[1/4]], 10, 102] // First (* _Jean-François Alcover_, Feb 07 2013, after _Eric W. Weisstein_ *) %o A086058 (PARI) 1+2*Euler+2*log(2)+3*log(Pi)-4*lngamma(1/4) \\ _Charles R Greathouse IV_, Dec 08 2014 %Y A086058 Cf. A062089, A241017. %K A086058 nonn,cons %O A086058 1,2 %A A086058 _Eric W. Weisstein_, Jul 07 2003