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 A186501 #12 Jun 16 2021 09:21:39
%S A186501 2,5,5,5,6,0,4,6,1,2,1,0,0,8,2,0,6,1,5,2,5,1,4,5,4,2,6,5,4,7,1,6,6,8,
%T A186501 8,2,5,1,6,6,6,2,4,5,5,4,6,7,7,0,0,8,2,6,5,7,4,4,4,7,7,9,0,5,1,9,4,6,
%U A186501 9,4,0,9,1,0,5,5,6,7,9,2,3,8,0,7,8,5,3,5,0,3,1,4,6,9,5,3,6,8,2,1,6,6
%N A186501 Decimal expansion of the solution x to x^x = 11.
%e A186501 2.5556046121008206152514542654716688251666246..
%t A186501 x=11;RealDigits[Log[x]/ProductLog[Log[x]],10,103][[1]]
%t A186501 RealDigits[x/.FindRoot[x^x==11,{x,2},WorkingPrecision->110]][[1]] (* _Harvey P. Dale_, Nov 13 2011 *)
%Y A186501 Cf. A030798, A173158, A000038, A173159, A173160, A173161, A173162, A173163, A090625, A186502, A186503, A186504, A344930, A093590.
%K A186501 nonn,cons
%O A186501 1,1
%A A186501 _Vladimir Joseph Stephan Orlovsky_, Feb 22 2011