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 A242909 #8 Dec 10 2024 15:56:18 %S A242909 7,4,9,3,0,6,0,0,1,2,8,8,4,4,9,0,2,3,6,0,5,8,7,1,5,1,8,6,8,5,2,6,1,5, %T A242909 1,1,8,3,3,3,0,1,2,2,2,0,1,6,7,2,4,9,3,0,8,9,4,3,4,1,3,8,6,5,8,6,2,9, %U A242909 2,2,9,8,6,4,3,8,7,3,9,7,2,6,6,5,0,2,5,6,0,2,6,3,2,8,8,3,0,7,5,4,6 %N A242909 Decimal expansion of exp(-gamma/2). %D A242909 Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Sections 3.10 Kneser-Mahler polynomial constants p. 234. %H A242909 C. J. Smyth, <a href="http://dx.doi.org/10.1017/S0004972700006894">On measures of polynomials in several variables</a>, Bulletin of the Australian Mathematical Society, Volume 23 (1981), Issue 01. %F A242909 Lim_(m->oo) M(z_1, z_2, ..., z_m)/sqrt(m), where M is Mahler's measure for multivariate polynomials. %e A242909 0.7493060012884490236058715186852615118333... %t A242909 RealDigits[Exp[-EulerGamma/2], 10, 101] // First %o A242909 (Magma) Exp(-EulerGamma(100)/2); // _Stefano Spezia_, Dec 10 2024 %Y A242909 Cf. A073004, A080130, A242908, A242910. %K A242909 nonn,cons %O A242909 0,1 %A A242909 _Jean-François Alcover_, May 26 2014