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A288420 a(n) = Sum_{d|n} d^4*A000593(n/d). 7
1, 17, 85, 273, 631, 1445, 2409, 4369, 6898, 10727, 14653, 23205, 28575, 40953, 53635, 69905, 83539, 117266, 130341, 172263, 204765, 249101, 279865, 371365, 394406, 485775, 558778, 657657, 707311, 911795, 923553, 1118481, 1245505, 1420163, 1520079, 1883154 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Multiplicative because this sequence is the Dirichlet convolution of A000583 and A000593 which are both multiplicative. - Andrew Howroyd, Jul 20 2018

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..10000

CROSSREFS

Cf. A000583, A288415.

Sum_{d|n} d^k*A000593(n/d): A288417 (k=0), A109386 (k=1), A288418 (k=2), A288419 (k=3), this sequence (k=4).

Sequence in context: A239667 A156968 A212487 * A156157 A146389 A041554

Adjacent sequences:  A288417 A288418 A288419 * A288421 A288422 A288423

KEYWORD

mult,nonn

AUTHOR

Seiichi Manyama, Jun 09 2017

EXTENSIONS

Keyword:mult added by Andrew Howroyd, Jul 23 2018

STATUS

approved

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Last modified July 17 08:42 EDT 2019. Contains 325098 sequences. (Running on oeis4.)