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 A147866 #3 Oct 09 2015 16:44:13
%S A147866 1,1,3,6,6,9,3,3,8,9,6,5,6,2,7,7,0,8,4,9,0,0,8,5,8,0,6,9,6,0,7,7,8,1,
%T A147866 4,4,6,7,2,9,9,1,3,4,7,7,0,6,1,2,8,2,7,1,4,6,8,3,0,5,8,4,1,1,1,0,3,2,
%U A147866 2,0,3,6,5,3,2,3,2,8,9,5,6,6,6,8,6,7,0,9,8,7,3,7,1,8,4,1,2,6,3,0
%N A147866 Decimal expansion of smallest positive solution to x^6 = tan x.
%t A147866 RealDigits[x/.FindRoot[x^6==Tan[x],{x,1},WorkingPrecision->120]][[1]] (* _Harvey P. Dale_, Oct 09 2015 *)
%Y A147866 Cf. A147862-A147868.
%K A147866 nonn,cons
%O A147866 1,3
%A A147866 Grover Hughes (ghughes(AT)magtel.com), Nov 16 2008