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 A226568 #21 Apr 21 2016 10:59:56
%S A226568 3,0,3,6,5,9,1,2,7,0,2,9,9,6,6,0,5,1,2,4,5,0,1,8,9,5,1,2,1,3,2,2,2,6,
%T A226568 5,9,9,9,1,1,9,9,6,1,8,7,6,1,1,7,2,7,0,9,6,4,4,1,7,0,3,3,4,5,6,0,6,6,
%U A226568 1,7,6,6,6,2,0,1,3,7,7,8,4,7,8,2,3,6,6,2,0,6,2,9,3,4,8,1,6,5,4,1,8,2,0,3,3
%N A226568 Decimal expansion of the number defined by x^x + x = 1.
%F A226568 Equals 1/(A085846+1). - _Bruno Berselli_, Jun 14 2013
%e A226568 0.30365912702996605124501895121322265999119961876117270964417033...
%t A226568 RealDigits[x/.FindRoot[x^x + x == 1, {x, 3.5}, WorkingPrecision -> 110]][[1]]
%o A226568 (PARI) solve(x=.3,1,x^x+x-1) \\ _Charles R Greathouse IV_, Apr 21 2016
%Y A226568 Cf. A085846.
%K A226568 nonn,cons
%O A226568 0,1
%A A226568 _José María Grau Ribas_, Jun 11 2013