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 A347216 #14 Aug 05 2024 13:44:15
%S A347216 5,9,8,3,5,8,5,0,2,0,8,4,6,7,7,7,9,7,9,4,3,4,0,4,0,4,4,0,9,4,6,5,9,7,
%T A347216 7,7,8,7,1,7,5,8,5,5,5,5,0,0,0,7,9,0,6,0,1,0,2,7,4,0,7,3,4,2,0,6,4,1,
%U A347216 0,2,0,6,5,0,6,4,7,2,2,1,9,3,0,1,9,8,1
%N A347216 Decimal expansion of Sum_{k=2..6} zeta(k).
%H A347216 Michael I. Shamos, <a href="https://citeseerx.ist.psu.edu/pdf/ae33a269baba5e8b1038e719fb3209e8a00abec5">Shamos's catalog of the real numbers</a> (2011).
%e A347216 5.9835850208467779794340404409465977787175855550...
%t A347216 RealDigits[Total[Zeta[Range[2, 6]]], 10, 120][[1]] (* _Amiram Eldar_, Jun 07 2023 *)
%Y A347216 Cf. A002117, A013661, A013662, A013663, A013664.
%Y A347216 Cf. A347213, A347214, A347215, A347217, A347218, A347219, A347220.
%K A347216 nonn,cons
%O A347216 1,1
%A A347216 _Sean A. Irvine_, Aug 24 2021