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A160957
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Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 11.
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1
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1, 1023, 29524, 523776, 2441406, 30203052, 47079208, 268173312, 581120892, 2497558338, 2593742460, 15463962624, 11488207654, 48162029784, 72080070744, 137304735744, 125999618778, 594486672516, 340614792100, 1278749869056
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OFFSET
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1,2
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REFERENCES
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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.
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LINKS
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Table of n, a(n) for n=1..20.
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FORMULA
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a(n) = A069095(n)/A000010(n). - R. J. Mathar, Jul 12 2011
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CROSSREFS
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Sequence in context: A023060 A223079 A011560 * A038997 A068026 A075946
Adjacent sequences: A160954 A160955 A160956 * A160958 A160959 A160960
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KEYWORD
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nonn,mult
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AUTHOR
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N. J. A. Sloane, Nov 19 2009
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EXTENSIONS
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Definition corrected by Enrique Pérez Herrero, Oct 30 2010
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STATUS
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approved
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