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 A350294 #10 Dec 27 2021 23:46:52
%S A350294 0,1,2,6,12,26,54,112,227,460,930,1877,3780,7606,15291,30720,61680,
%T A350294 123790,248346,498073,998643,2001826,4011942,8039082,16106127,
%U A350294 32263876,64623350,129424237,259179060,518975214,1039104990,2080374784,4164816771,8337289456,16689015778
%N A350294 a(n) = floor(n*2^n/(n + 1)).
%H A350294 Robert Israel, <a href="/A350294/b350294.txt">Table of n, a(n) for n = 0..3305</a>
%H A350294 Heiko Harborth and Hauke Nienborg, <a href="https://www.researchgate.net/publication/266861957_Saturated_vertex_Turan_numbers_for_cube_graphs">Saturated vertex Turán numbers for cube graphs</a>, Congr. Num. 208 (2011), 183-188.
%H A350294 Mathonline, <a href="http://mathonline.wikidot.com/cube-graphs">Cube Graphs</a>
%F A350294 A350293(n) <= a(n) (see Lemma 1 in Harborth and Nienborg).
%F A350294 a(n) ~ 2^n.
%p A350294 f:= n -> floor(n*2^n/(n+1)):
%p A350294 map(f, [$0..40]); # _Robert Israel_, Dec 27 2021
%t A350294 Table[Floor[n 2^n/(n+1)],{n,0,34}]
%Y A350294 Cf. A000079, A350293.
%K A350294 nonn
%O A350294 0,3
%A A350294 _Stefano Spezia_, Dec 23 2021