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 A360366 #7 Feb 04 2023 20:48:25
%S A360366 3,22,22,201,333,355,355,75948,100798,103993,312689,833719,4272943,
%T A360366 5419351,58466453,80143857,245850922,1068966896,2549491779,6167950454,
%U A360366 21053343141,21053343141,1299139324288,1741259530249,3587785776203,8958937768937,8958937768937,130796280757852
%N A360366 a(n) is the numerator of the rational number with the smallest denominator that lies within 1/10^n of Pi.
%H A360366 Wolfram Research (1988), <a href="https://reference.wolfram.com/language/ref/Rationalize.html">Rationalize, Wolfram Language function</a>, (updated 1999).
%e A360366 The rational numbers are 3, 22/7, 22/7, 201/64, 333/106, 355/113, 355/113, 75948/24175, ...
%t A360366 Table[Numerator[Rationalize[Pi,10^(-n)]],{n,0,27}]
%Y A360366 Cf. A000796, A002485, A011557.
%Y A360366 Cf. A360367 (denominator), A360368, A360369, A360370.
%K A360366 nonn,base,frac
%O A360366 0,1
%A A360366 _Stefano Spezia_, Feb 04 2023