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 A240198 #8 Apr 08 2014 06:07:26
%S A240198 0,4,6,13,84,181,989,2521,11254,35113,35113
%N A240198 Numerator of rational approximation of sqrt(3)/2 within a tolerance 10^(-n).
%C A240198 Rational approximations of sqrt(3)/2 are 0/1, 4/5, 6/7, 13/15, 84/97, 181/209, 989/1142, 2521/2911, 11254/12995, 35113/40545, 35113/40545.
%t A240198 Table[Numerator[Rationalize[Sqrt[3]/2, 10^(-n)]], {n, 0, 10}]
%Y A240198 Cf. A010527.
%K A240198 nonn
%O A240198 0,2
%A A240198 _Zak Seidov_, Apr 02 2014