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 A360367 #6 Feb 04 2023 20:48:35
%S A360367 1,7,7,64,106,113,113,24175,32085,33102,99532,265381,1360120,1725033,
%T A360367 18610450,25510582,78256779,340262731,811528438,1963319607,6701487259,
%U A360367 6701487259,413528890451,554260122890,1142027682075,2851718461558,2851718461558,41633749241295,91822653867264
%N A360367 a(n) is the denominator of the rational number with the smallest denominator that lies within 1/10^n of Pi.
%H A360367 Wolfram Research (1988), <a href="https://reference.wolfram.com/language/ref/Rationalize.html">Rationalize, Wolfram Language function</a>, (updated 1999).
%e A360367 The rational numbers are 3, 22/7, 22/7, 201/64, 333/106, 355/113, 355/113, 75948/24175, ...
%t A360367 Table[Denominator[Rationalize[Pi,10^(-n)]],{n,0,28}]
%Y A360367 Cf. A000796, A002486, A011557.
%Y A360367 Cf. A360366 (numerator), A360368, A360369, A360370.
%K A360367 nonn,base,frac
%O A360367 0,2
%A A360367 _Stefano Spezia_, Feb 04 2023