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 A353688 #8 May 06 2022 15:26:33 %S A353688 0,1,1,1,1,1,2,1,1,1,2,1,4,1,2,3,1,1,1,1,2,1,2,1,4,1,2,1,4,1,6,1,1,3, %T A353688 2,1,1,1,2,1,2,1,2,1,4,3,2,1,4,1,1,3,2,1,2,1,8,1,2,1,12,1,2,1,1,1,6,1, %U A353688 2,3,2,1,1,1,2,1,4,1,2,1,2,1,2,1,4,1,2,3,4,1,6,7,4,1,2,5,4,1,1,3,1,1,6,1,2,3 %N A353688 a(n) = n / A098988(n). %H A353688 Antti Karttunen, <a href="/A353688/b353688.txt">Table of n, a(n) for n = 0..65537</a> %o A353688 (PARI) %o A353688 A098988(n) = if(0==n, 1, denominator(sumdiv(n,d, ((-1)^(d+1))/d))); %o A353688 A353688(n) = (n / A098988(n)); %Y A353688 Cf. A098988. %K A353688 nonn %O A353688 0,7 %A A353688 _Antti Karttunen_, May 06 2022