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 A019803 #15 Sep 08 2022 08:44:44 %S A019803 2,1,1,9,6,7,6,3,4,6,9,0,6,4,7,6,5,4,8,5,1,2,3,0,5,5,1,1,0,6,2,1,8,2, %T A019803 6,1,4,8,9,1,1,2,3,9,0,8,3,5,2,3,5,3,1,1,1,8,2,5,5,4,2,2,2,5,2,5,0,9, %U A019803 1,8,2,2,6,7,3,8,7,7,9,4,0,8,6,3,8,7,5,4,5,3,7,9,9,5,8,8,8,8,6 %N A019803 Decimal expansion of sqrt(2*e)/11. %H A019803 Ivan Panchenko, <a href="/A019803/b019803.txt">Table of n, a(n) for n = 0..1000</a> %e A019803 0.211967634690647654851230551106218261489112390835235311182554222525... %t A019803 RealDigits[Sqrt[2E]/11,10,120][[1]] (* _Harvey P. Dale_, Nov 25 2012 *) %o A019803 (PARI) default(realprecision, 100); sqrt(2*exp(1))/11 \\ _G. C. Greubel_, Sep 08 2018 %o A019803 (Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Sqrt(2*Exp(1))/11; // _G. C. Greubel_, Sep 08 2018 %Y A019803 Cf. A019798 (sqrt(2*e)). %K A019803 nonn,cons %O A019803 0,1 %A A019803 _N. J. A. Sloane_