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 A351844 #5 Feb 21 2022 21:12:28
%S A351844 0,6,30,36,3130,528,823550,200,1467,200240,285311670622,5820,
%T A351844 302875106592266,210827456,1525560,1040,827240261886336764194,24390,
%U A351844 1978419655660313589123998,9601700,3602195688,1168636602823712,20880467999847912034355032910590,58896,19531275
%N A351844 a(n) = Sum_{d|n} Sum_{p|n, p prime} n^gcd(d,p).
%e A351844 a(6) = 528; a(6) = Sum_{d|6} Sum_{p|6, p prime} 6^gcd(d,p) = Sum_{d|6} (6^gcd(d,2) + 6^gcd(d,3)) = (6^gcd(1,2) + 6^gcd(2,2) + 6^gcd(3,2) + 6^gcd(6,2)) + (6^gcd(1,3) + 6^gcd(2,3) + 6^gcd(3,3) + 6^gcd(6,3)) = 528.
%Y A351844 Cf. A351711, A351845.
%K A351844 nonn
%O A351844 1,2
%A A351844 _Wesley Ivan Hurt_, Feb 21 2022