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A214814
Number of unsensed genus 2 maps with n edges.
11
0, 0, 0, 0, 4, 76, 1395, 24950, 427336, 6987100, 109761827, 1668376886, 24689351504, 357467967214, 5083309341304, 71209097157108, 984963603696282, 13477371260785608, 182698708325667710, 2456600457435363198, 32796863046711248526
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OFFSET
0,5
LINKS
Table of n, a(n) for n=0..20.
Evgeniy Krasko and Alexander Omelchenko,
Enumeration of Unsensed Orientable Maps on Surfaces of a Given Genus
, arXiv:1712.10139 [math.CO], 2017.
Timothy R. Walsh,
Space-efficient generation of nonisomorphic maps and hypermaps
.
T. R. Walsh,
Space-Efficient Generation of Nonisomorphic Maps and Hypermaps
, J. Int. Seq. 18 (2015) # 15.4.3
CROSSREFS
Column k=2 of
A379439
.
Cf.
A006301
(rooted),
A104595
(sensed).
Cf.
A006385
,
A006387
,
A214815
,
A214816
.
Sequence in context:
A240281
A114453
A093184
*
A144210
A220793
A220958
Adjacent sequences:
A214811
A214812
A214813
*
A214815
A214816
A214817
KEYWORD
nonn
AUTHOR
N. J. A. Sloane
, Jul 31 2012
EXTENSIONS
More terms from
Evgeniy Krasko
, Sep 17 2017
STATUS
approved
