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 A332655 #7 Sep 08 2022 08:46:25
%S A332655 1,2,10,84,1301,15693,376762,6168552,176787631,3770427352,
%T A332655 142364319626,3152758480715,154718778284149,4340093860950619,
%U A332655 210971170836848270,7281694486114555088,435659030617933827137,14181121059071691716406,1052864393300587929716722,41673907052879908244100770
%N A332655 a(n) = Sum_{k=1..n} (k/gcd(n, k))^n.
%F A332655 a(n) = Sum_{k=1..n} (lcm(n, k)/n)^n.
%F A332655 a(n) = Sum_{d|n} Sum_{k=1..d, gcd(k, d) = 1} k^n.
%t A332655 Table[Sum[(k/GCD[n, k])^n, {k, 1, n}], {n, 1, 20}]
%t A332655 Table[Sum[Sum[If[GCD[k, d] == 1, k^n, 0], {k, 1, d}], {d, Divisors[n]}], {n, 1, 20}]
%o A332655 (Magma) [&+[(k div Gcd(n,k))^n:k in [1..n]]:n in [1..20]]; // _Marius A. Burtea_, Feb 18 2020
%Y A332655 Cf. A031971, A057661, A226561, A332517, A332621, A332652, A332653, A332654.
%K A332655 nonn
%O A332655 1,2
%A A332655 _Ilya Gutkovskiy_, Feb 18 2020