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A112614 Related to enumeration of branched orientable surface coverings over a non-orientable surface. 0
15, 14120, 371515454 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

See reference for more information.

REFERENCES

I. P. Goulden, J. H. Kwak and J. Lee, Enumerating branched orientable surface coverings over a non-orientable surface, Discr. Math. 303 (2005), 42-55.

CROSSREFS

Sequence in context: A140285 A198911 A206513 * A198521 A068732 A174304

Adjacent sequences:  A112611 A112612 A112613 * A112615 A112616 A112617

KEYWORD

nonn,bref

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Dec 23 2005

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Last modified February 16 21:04 EST 2012. Contains 205969 sequences.