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 A346573 #14 Aug 06 2024 05:51:05
%S A346573 9,5,2,8,0,2,4,4,8,8,0,3,4,0,2,2,5,3,8,4,5,7,8,5,5,3,8,9,0,6,8,3,2,3,
%T A346573 7,1,9,3,4,2,7,6,8,6,6,8,7,4,9,6,4,7,2,6,3,4,1,6,8,5,1,3,5,8,9,7,3,9,
%U A346573 4,5,3,1,2,3,7,9,3,0,3,3,3,7,9,0,6,5,5
%N A346573 Decimal expansion of 2 - Pi/3.
%D A346573 L. B. W. Jolley, Summation of Series, Dover, 1961, Eq. (316).
%H A346573 Michael I. Shamos, <a href="https://citeseerx.ist.psu.edu/pdf/ae33a269baba5e8b1038e719fb3209e8a00abec5">Shamos's catalog of the real numbers</a> (2011).
%H A346573 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%F A346573 Equals 2 - A019670.
%F A346573 Equals 1 + Sum_{k>=1} ( ((-1)^k/(6*k-1) - (-1)^k/(6*k+1)) ).
%e A346573 0.9528024488034022538457855389...
%t A346573 RealDigits[2-Pi/3, 10, 120][[1]] (* _Amiram Eldar_, Jun 13 2023 *)
%Y A346573 Cf. A019670, A346572, A346571, A346570.
%K A346573 nonn,cons
%O A346573 0,1
%A A346573 _Sean A. Irvine_, Jul 23 2021