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 A354105 #10 May 19 2022 09:21:36 %S A354105 2,0,0,1,0,8,0,3,16,4,0,12,0,24,16,7,0,24,0,6,96,32,0,20,4,12,96,36,0, %T A354105 0,0,15,128,20,48,44,0,56,48,10,0,0,0,48,48,72,0,36,144,8,80,18,0,104, %U A354105 64,60,224,36,0,8,0,80,288,31,24,0,0,30,288,0,0,84,0,44,32,84,384,0,0,18,496,60,0,48,40,104,144 %N A354105 Sum of A354102 and its Dirichlet inverse. %H A354105 Antti Karttunen, <a href="/A354105/b354105.txt">Table of n, a(n) for n = 1..19683</a> %F A354105 a(n) = A354102(n) + A354104(n). %F A354105 a(1) = 2, and for n > 1, a(n) = -Sum_{d|n, 1<d<n} A354102(d) * A354104(n/d). %F A354105 a(n) = A319340(A267099(n)). %o A354105 (PARI) A354105(n) = (A354102(n)+A354104(n)); %Y A354105 Cf. A267099, A319340, A354102, A354104. %K A354105 nonn %O A354105 1,1 %A A354105 _Antti Karttunen_, May 18 2022