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A160894 ((2^b-1)/phi(n))*Sum_{d|n} Moebius(n/d)*d^(b-1) for b = 5. 0
31, 465, 1240, 3720, 4836, 18600, 12400, 29760, 33480, 72540, 45384, 148800, 73780, 186000, 193440, 238080, 161820, 502200, 224440, 580320, 496000, 680760, 394320, 1190400, 604500, 1106700, 903960, 1488000, 783060, 2901600, 954304, 1904640 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

J. H. Kwak and J. Lee, Enumeration of graph coverings, surface branched coverings and related group theory, in Combinatorial and Computational Mathematics (Pohang, 2000), ed. S. Hong et al., World Scientific, Singapore 2001, pp. 97-161. See p. 134.

LINKS

Table of n, a(n) for n=1..32.

FORMULA

a(n) = 31*A160891(n). - R. J. Mathar, Mar 16 2016

CROSSREFS

Sequence in context: A160443 A125466 A142280 * A010947 A022626 A042866

Adjacent sequences:  A160891 A160892 A160893 * A160895 A160896 A160897

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 19 2009

STATUS

approved

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Last modified April 21 20:59 EDT 2019. Contains 322328 sequences. (Running on oeis4.)