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 A019710 #19 Jun 19 2023 06:40:39
%S A019710 2,2,1,5,5,6,7,3,1,3,6,3,1,8,9,5,0,3,4,1,2,2,7,0,9,3,5,4,1,7,6,4,3,1,
%T A019710 4,7,8,4,9,6,9,3,6,8,2,0,1,5,2,9,8,3,9,1,0,2,6,7,2,5,9,7,3,7,3,1,6,1,
%U A019710 3,9,1,0,5,7,3,8,7,9,0,2,2,6,7,1,8,6,8,8,3,2,0,9,2,3,1,8,0,8,3
%N A019710 Decimal expansion of sqrt(Pi)/8.
%H A019710 Ivan Panchenko, <a href="/A019710/b019710.txt">Table of n, a(n) for n = 0..1000</a>
%H A019710 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%F A019710 Equals 10 * Sum_{k>=1} (k+1/2)!/(k+4)!. - _Amiram Eldar_, Jun 19 2023
%t A019710 RealDigits[Sqrt[Pi]/8,10,120][[1]] (* _Harvey P. Dale_, Jul 14 2011 *)
%o A019710 (PARI) sqrt(Pi)/8 \\ _Charles R Greathouse IV_, Sep 30 2022
%Y A019710 Cf. A002161.
%K A019710 nonn,cons
%O A019710 0,1
%A A019710 _N. J. A. Sloane_