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 A350997 #6 Jan 30 2022 09:54:14
%S A350997 1,5,32,48,3173,49829,873372,873436,874165,10000874165,295312544776,
%T A350997 295315530760,303170422123013,11415177247681029,449309067628540404,
%U A350997 449309067628540660,827689570953965304837,827689570953999317061,1979247345231267588441040
%N A350997 a(n) = Sum_{k=1..n} k^rad(k).
%H A350997 Wikipedia, <a href="https://en.wikipedia.org/wiki/Radical_of_an_integer">Radical of an integer</a>.
%F A350997 a(n) = Sum_{k=1..n} A176031(k).
%e A350997 a(4) = 48; a(4) = Sum_{k=1..4} k^rad(k) = 1^rad(1) + 2^rad(2) + 3^rad(3) + 4^rad(4) = 1^1 + 2^2 + 3^3 + 4^2 = 48.
%t A350997 f[n_] := n^Times @@ FactorInteger[n][[;; , 1]]; Accumulate @ Array[f, 20] (* _Amiram Eldar_, Jan 29 2022 *)
%Y A350997 Cf. A007947 (rad), A176031, A350996.
%K A350997 nonn
%O A350997 1,2
%A A350997 _Wesley Ivan Hurt_, Jan 28 2022