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Search: id:A161195
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| A161195 |
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((2^b-1)/phi(n))*Sum_{d|n} Moebius(n/d)*d^(b-1) for b = 16. |
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2
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| 65535, 2147385345, 470177777355, 35182761492480, 499992370589085, 15406315230591285, 51855240592341495, 576434364292792320, 2248845733577866995, 16383250007092548195, 27375595878265462275
(list; graph; listen)
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OFFSET
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1,1
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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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CROSSREFS
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Adjacent sequences: A161192 A161193 A161194 this_sequence A161196 A161197 A161198
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KEYWORD
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nonn,new
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Nov 19 2009
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