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A058352 a(n) Sum_{d|n, 1<=d<n} d*A000084(d). 6
0, 1, 1, 5, 1, 17, 1, 45, 13, 125, 1, 453, 1, 1265, 133, 4221, 1, 14201, 1, 46405, 1273, 155501, 1, 531789, 121, 1792809, 13801, 6126333, 1, 21032793, 1, 72121853, 155509, 248396797, 1381, 857944149, 1, 2964896881, 1792817, 10269600621, 1, 35628546989, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,4
REFERENCES
Z. A. Lomnicki, Two-terminal series-parallel networks, Adv. Appl. Prob., 4 (1972), 109-150.
LINKS
MAPLE
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;
CROSSREFS
Sequence in context: A093826 A144699 A066787 * A121755 A104174 A050400
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 16 2000
EXTENSIONS
More terms from Sean A. Irvine, Aug 04 2022
STATUS
approved

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)