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 A173271 #18 Apr 15 2023 14:35:03
%S A173271 1,2,3,5,10,22,57,165,534,1819,6474,23547,87147,325738,1227709,
%T A173271 4654285,17733540,67841449,260463501,1003087733,3873759683,
%U A173271 14996820361,58188678049,226235685777,881235386180,3438462430944,13437551253019
%N A173271 Partial sums of A000105.
%H A173271 John Mason, <a href="/A173271/b173271.txt">Table of n, a(n) for n = 0..50</a> (terms 0..48 from Jean-François Alcover).
%F A173271 a(n) = A130866(n) + 1. - _John Mason_, Feb 21 2023
%t A173271 Cases[Import["https://oeis.org/A000105/b000105.txt", "Table"], {_, _}][[All, 2]] // Accumulate (* _Jean-François Alcover_, Aug 17 2022 *)
%Y A173271 Cf. A000105, A130866.
%K A173271 nonn
%O A173271 0,2
%A A173271 _Jonathan Vos Post_, Feb 14 2010