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 A240717 #36 Feb 16 2025 08:33:21 %S A240717 2,4,1,9,7,0,7,2,4,5,1,9,1,4,3,3,4,9,7,9,7,8,3,0,1,9,2,9,3,5,5,6,0,6, %T A240717 5,4,8,2,8,6,7,1,9,7,0,7,3,7,4,3,5,0,2,5,4,8,7,5,5,5,0,8,4,2,8,1,1,0, %U A240717 0,0,6,3,5,7,0,0,8,3,2,9,4,5,0,8,3,1,1,2,9,4,6,9,3,9,4,2,4,0,4,7 %N A240717 Decimal expansion of 1/sqrt(2*Pi*e), one of the Traveling Salesman constants. %C A240717 This constant is a coefficient in the asymptotics of the minimum tour-length. %D A240717 Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, p. 497. %H A240717 G. C. Greubel, <a href="/A240717/b240717.txt">Table of n, a(n) for n = 0..10000</a> %H A240717 Eric Weisstein's MathWorld, <a href="https://mathworld.wolfram.com/TravelingSalesmanConstants.html">Traveling Salesman Constants</a> %e A240717 0.24197072451914334979783019293556... %t A240717 RealDigits[1/Sqrt[2*Pi*E], 10, 100] // First %o A240717 (PARI) 1/sqrt(2*Pi*exp(1)) \\ _G. C. Greubel_, Aug 19 2018 %o A240717 (Magma) SetDefaultRealField(RealField(100)); R:= RealField(); 1/Sqrt(2*Pi(R)*Exp(1)); // _G. C. Greubel_, Aug 19 2018 %Y A240717 Cf. A000796, A001620, A019633, A073008, A086306, A086307. %K A240717 nonn,cons,easy %O A240717 0,1 %A A240717 _Jean-François Alcover_, May 13 2014