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 A245724 #10 Aug 02 2014 02:25:02 %S A245724 6,1,9,4,0,3,6,9,8,4,5,8,6,3,1,8,8,5,7,1,8,5,1,4,2,0,8,1,0,4,1,6,4,6, %T A245724 0,9,7,1,2,3,5,8,4,9,5,5,0,9,1,4,6,5,3,5,0,6,6,8,3,8,3,9,7,7,7,6,0,5, %U A245724 4,1,6,4,7,2,8,3,6,8,0,7,7,0,7,0,5,9,6,6,7,9,1,2,9,5,4,3,7,0,8,7,4,3 %N A245724 Decimal expansion of 'g', a constant related to the asymptotic distribution of the Q moment and the logarithmic divergence of the Ising specific heat. %D A245724 Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 5.22 Lenz-Ising Constants, p. 399. %H A245724 Vincenzo Librandi, <a href="/A245724/b245724.txt">Table of n, a(n) for n = 0..1000</a> %H A245724 Wikipedia, <a href="http://en.wikipedia.org/wiki/Ising_model">Ising Model</a> %F A245724 g = 1 + Pi/4 + log((sqrt(2)/4)*log(1 + sqrt(2))). %e A245724 0.619403698458631885718514208104164609712358495509146535066838397776... %t A245724 g = 1 + Pi/4 + Log[(Sqrt[2]/4)*Log[1 + Sqrt[2]]]; RealDigits[g, 10, 102] // First %Y A245724 Cf. A218387, A242743. %K A245724 nonn,cons,easy %O A245724 0,1 %A A245724 _Jean-François Alcover_, Jul 30 2014