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 A019653 #21 Sep 08 2022 08:44:44 %S A019653 3,2,4,6,9,8,0,4,0,5,9,1,3,6,4,2,0,7,1,7,1,2,9,1,4,5,2,9,0,0,8,5,3,5, %T A019653 9,0,5,9,9,7,6,7,5,0,5,8,4,9,6,1,8,5,3,9,8,9,0,8,6,0,0,0,1,2,7,4,6,6, %U A019653 1,7,9,6,9,2,9,2,1,7,4,3,1,6,0,4,8,8,4,0,6,3,0,8,5,2,2,8,7,6,9 %N A019653 Decimal expansion of sqrt(Pi*e)/9. %H A019653 Ivan Panchenko, <a href="/A019653/b019653.txt">Table of n, a(n) for n = 0..1000</a> %t A019653 RealDigits[Sqrt[Pi E]/9,10,120][[1]] (* _Harvey P. Dale_, Apr 06 2013 *) %o A019653 (PARI) sqrt(Pi*exp (1))/9 \\ _G. C. Greubel_, Jan 10 2017 %o A019653 (Magma) C<i> := ComplexField(); [Sqrt(Pi(C)*Exp(1))/9]; // _G. C. Greubel_, Nov 06 2017 %Y A019653 Cf. A019645. %K A019653 nonn,cons %O A019653 0,1 %A A019653 _N. J. A. Sloane_