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 A134882 #9 Dec 02 2018 02:22:58
%S A134882 0,2,7,4,2,5,6,9,3,2,7,6,9,9,1,3,7,8,2,8,1,1,6,1,1,9,4,8,4,3,1,2,0,8,
%T A134882 3,2,6,8,2,2,5,5,9,5,3,8,8,0,5,7,8,9,0,7,0,9,9,8,8,1,7,4,4,3,1,0,1,6,
%U A134882 1,3,8,6,5,0,3,8,8,4,7,4,4,5,7,6,3,0,8,4,3,8,8,3,2,9,1,7,4,4,7,1,1
%N A134882 Decimal expansion of Sum_{x>=1} 1/(Pi^x)^(Pi^x).
%e A134882 0.02742569327699137828116119484312083268225595388057...
%t A134882 RealDigits[N[Sum[1/(Pi^n)^(Pi^n), {n, 1, 20}], 200]][[1]] (* first two zeros removed *)
%Y A134882 Cf. A073009, A100085, A134877, A134878, A134879, A134880, A134881, A134883.
%K A134882 nonn,cons
%O A134882 0,2
%A A134882 _Artur Jasinski_, Nov 14 2007