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 A058352 #7 Aug 04 2022 15:51:14
%S A058352 0,1,1,5,1,17,1,45,13,125,1,453,1,1265,133,4221,1,14201,1,46405,1273,
%T A058352 155501,1,531789,121,1792809,13801,6126333,1,21032793,1,72121853,
%U A058352 155509,248396797,1381,857944149,1,2964896881,1792817,10269600621,1,35628546989,1
%N A058352 a(n) Sum_{d|n, 1<=d<n} d*A000084(d).
%D A058352 Z. A. Lomnicki, Two-terminal series-parallel networks, Adv. Appl. Prob., 4 (1972), 109-150.
%p A058352 A058352 := proc(n) local d,t1; t1 := 0; for d from 1 to n-1 do if n mod d = 0 then t1 := t1+d*A000084(d); fi; od; t1; end;
%Y A058352 Cf. A000084, A006349, A006350, A058351, A058353, A000669.
%K A058352 nonn
%O A058352 0,4
%A A058352 _N. J. A. Sloane_, Dec 16 2000
%E A058352 More terms from _Sean A. Irvine_, Aug 04 2022