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 A368610 #9 Jan 01 2024 22:28:22
%S A368610 0,1,4,8,14,20,30,38,49,59,72,82,101,113,130,147,167,181,206,222,248,
%T A368610 270,293,311,346,367,392,416,448,468,508,530,565,594,624,653,700,724,
%U A368610 757,789,836,862,913,941,985,1028,1067,1097,1159,1193,1240,1279,1328,1360,1418
%N A368610 a(n) = Sum_{k=1..n} pi(k) * ceiling(n/k).
%F A368610 a(n) = A092494(n) + A368612(n).
%t A368610 Table[Sum[PrimePi[k] Ceiling[n/k], {k, n}], {n, 100}]
%Y A368610 Cf. A000720 (pi), A046992, A092494, A368611, A368612, A368613.
%K A368610 nonn,easy
%O A368610 1,3
%A A368610 _Wesley Ivan Hurt_, Dec 31 2023