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A078308 Sum_{d divides n} d^(n/d+1). +0
2
1, 5, 10, 25, 26, 80, 50, 161, 163, 290, 122, 988, 170, 796, 1580, 2305, 290, 5561, 362, 10670, 9404, 5912, 530, 58436, 16251, 19258, 66340, 118640, 842, 381740, 962, 431105, 547172, 268214, 509500, 3534037, 1370, 1056880, 4813052, 8616326, 1682 (list; graph; listen)
OFFSET

1,2

FORMULA

G.f.: Sum{n>0} n^2*x^n/(1-n*x^n).

CROSSREFS

Cf. A055225, A006906.

Sequence in context: A098112 A037240 A166635 this_sequence A083493 A061259 A072421

Adjacent sequences: A078305 A078306 A078307 this_sequence A078309 A078310 A078311

KEYWORD

nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 22 2002

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Last modified December 6 11:04 EST 2009. Contains 170427 sequences.


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