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 A324044 #6 Feb 14 2019 07:46:48
%S A324044 0,0,0,0,0,2,0,0,-1,2,0,6,0,2,2,0,0,7,0,6,2,2,0,14,-3,2,-6,6,0,20,0,0,
%T A324044 2,2,2,23,0,2,2,14,0,24,0,6,4,2,0,30,-5,9,2,6,0,20,2,14,2,2,0,56,0,2,
%U A324044 2,0,2,32,0,6,2,28,0,55,0,2,6,6,2,36,0,30,-25,2,0,68,2,2,2,14,0,70,2,6,2,2,2,62,0,11,-2,33,0,44,0,14,30
%N A324044 a(n) = A003958(n) - A033879(n).
%H A324044 Antti Karttunen, <a href="/A324044/b324044.txt">Table of n, a(n) for n = 1..20000</a>
%F A324044 a(n) = A003958(n) - A033879(n).
%o A324044 (PARI)
%o A324044 A003958(n) = { my(f = factor(n)); for(i=1, #f~, f[i, 1]--); factorback(f); };
%o A324044 A033879(n) = (2*n-sigma(n));
%o A324044 A324044(n) = (A003958(n)-A033879(n));
%Y A324044 Cf. A003958, A033879.
%Y A324044 Cf. also A319687, A323911.
%K A324044 sign
%O A324044 1,6
%A A324044 _Antti Karttunen_, Feb 13 2019