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A112617
Related to enumeration of branched orientable surface coverings over a non-orientable surface.
0
1, 39, 1483, 354009, 208211284
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OFFSET
1,2
COMMENTS
See reference for more information.
LINKS
Table of n, a(n) for n=1..5.
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:
A170720
A170758
A218741
*
A009983
A269028
A158768
Adjacent sequences:
A112614
A112615
A112616
*
A112618
A112619
A112620
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Dec 23 2005
STATUS
approved
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Last modified June 30 02:52 EDT 2024. Contains 373859 sequences. (Running on oeis4.)