A058352 a(n) Sum_{d|n, 1<=dA000084(d).

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

Offset: 0

Author

N. J. A. Sloane, Dec 16 2000

Keywords

• nonn

References

• Z. A. Lomnicki, Two-terminal series-parallel networks, Adv. Appl. Prob., 4 (1972), 109-150.

Crossrefs

Cf. A000084, A006349, A006350, A058351, A058353, A000669.

Programs

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;

Extensions

More terms from Sean A. Irvine, Aug 04 2022