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 A343272 #16 Jul 20 2021 11:39:05
%S A343272 1,3,6,8,15,27,36,38,45,57,70,90,135,189,216,218,225,237,250,270,315,
%T A343272 369,400,420,465,527,606,756,999,1215,1296,1298,1305,1317,1330,1350,
%U A343272 1395,1449,1480,1500,1545,1607,1686,1836,2079,2295,2380,2400,2445,2507,2586,2736,2979,3203
%N A343272 Partial sums of A170842.
%F A343272 G.f.: 1/(1-x) * Product_{k>=1} (1 + 2*x^(2^k-1) + 3*x^(2^k)). - _Alois P. Heinz_, Apr 10 2021
%Y A343272 Cf. A170842, A187220.
%K A343272 nonn
%O A343272 0,2
%A A343272 _Omar E. Pol_, Apr 10 2021