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 A336518 #29 Aug 10 2020 13:13:33
%S A336518 3,2,6,6,1,8,0,0,7,0,9,1,3,5,9,6,9,0,4,8,1,3,8,4,1,4,7,2,8,5,8,3,3,3,
%T A336518 4,0,5,0,8,5,9,3,0,7,3,3,8,6,1,8,9,7,7,9,2,0,9,3,0,0,8,2,7,3,9,7,0,3,
%U A336518 0,0,4,7,6,8,6,0,6,5,2,5,5,1,1,2,9,5,4
%N A336518 Decimal expansion of 1 + Pi/log(4).
%F A336518 Equals limit_{z->0} -z*Z(1-z, 1) - z*(Z(1-z, 1/4) - Z(1-z, 3/4))/(2^(1-z) - 2), where Z(v, w) is the Hurwitz zeta function.
%F A336518 Equals 1 + (PolyGamma(3/4) - PolyGamma(1/4)) / log(4).
%e A336518 3.26618007091359690481384147285833340508593073386189779209300827397030...
%p A336518 Digits := 100: 1 + Pi/log(4): evalf(%, 100)*10^86:
%p A336518 ListTools:-Reverse(convert(floor(%), base, 10));
%o A336518 (PARI) 1 + Pi/log(4) \\ _Michel Marcus_, Aug 10 2020
%Y A336518 Cf. A000796, A016627.
%K A336518 nonn,cons
%O A336518 1,1
%A A336518 _Peter Luschny_, Aug 10 2020