login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A176709 Number of isomorphism classes of 6-fold coverings of a connected graph with Betti number n. 1
1, 11, 901, 524137, 373486525, 268749463729, 193492277719861, 139314094050615817, 100306131218514392365, 72220413687258533050849, 51998697816934668649790821, 37439062426374732606941352697, 26956124946902542404909380816605, 19408409961765641983297475951692369 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
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.
LINKS
M. W. Hero and J. F. Willenbring, Stable Hilbert series as related to the measurement of quantum entanglement, Discrete Math., 309 (2010), 6508-6514.
CROSSREFS
Row 6 of A160449.
Sequence in context: A162448 A024150 A052071 * A336800 A083816 A233092
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 07 2010
EXTENSIONS
Name edited, terms a(8) and beyond added by Andrey Zabolotskiy, Sep 02 2022
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)