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 A019806 #15 Sep 08 2022 08:44:44 %S A019806 1,3,7,1,5,5,5,2,8,3,2,9,2,4,2,6,0,0,1,9,7,8,5,5,0,6,2,4,8,0,4,9,4,1, %T A019806 6,9,1,9,8,8,3,7,4,2,9,3,6,3,9,7,5,7,8,9,5,8,8,7,1,1,5,5,5,7,5,1,5,3, %U A019806 0,0,0,2,9,0,6,6,2,6,9,0,2,9,1,1,9,1,9,4,1,1,2,8,2,0,8,6,9,2,6 %N A019806 Decimal expansion of sqrt(2*e)/17. %H A019806 Ivan Panchenko, <a href="/A019806/b019806.txt">Table of n, a(n) for n = 0..1000</a> %e A019806 0.13715552832924260019785506248049416919883742936397578958871... %t A019806 RealDigits[Sqrt[2*E]/17, 10, 100][[1]] %o A019806 (PARI) default(realprecision, 100); sqrt(2*exp(1))/17 \\ _G. C. Greubel_, Sep 08 2018 %o A019806 (Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Sqrt(2*Exp(1))/17; // _G. C. Greubel_, Sep 08 2018 %Y A019806 Cf. A019798 (sqrt(2*e)). %K A019806 nonn,cons %O A019806 0,2 %A A019806 _N. J. A. Sloane_