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 A333644 #8 Nov 18 2023 21:03:53
%S A333644 2,7,14,26,39,62,81,112,142,187,220,287,330,395,460,544,605,712,781,
%T A333644 904,1001,1116,1201,1376,1486,1633,1766,1945,2056,2279,2408,2623,2798,
%U A333644 3001,3180,3482,3641,3876,4091,4406,4587,4924,5117,5432,5717,6004,6217,6668,6914,7285
%N A333644 a(n) = Sum_{k=1..n} floor(n/k) * prime(k).
%C A333644 Partial sums of A007445.
%F A333644 G.f.: (1/(1 - x)) * Sum_{k>=1} prime(k) * x^k / (1 - x^k).
%t A333644 Table[Sum[Floor[n/k] Prime[k], {k, n}], {n, 50}]
%o A333644 (PARI) a(n) = sum(k=1, n, (n\k)*prime(k)); \\ _Michel Marcus_, Mar 31 2020
%Y A333644 Cf. A000040, A007445, A024916, A333471.
%K A333644 nonn
%O A333644 1,1
%A A333644 _Ilya Gutkovskiy_, Mar 31 2020