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A118095 Number of unrooted regular odd-valent planar maps with 8 vertices; maps are considered up to orientation-preserving homeomorphisms and the vertices are of valency 2n+1. +0
1
0, 191, 39670362, 4742588317460, 457373823022288900, 39758207592119720043060, 3253001744463113558023410456, 255859318139167527752722081113072 (list; graph; listen)
OFFSET

0,2

COMMENT

There is a closed formula.

REFERENCES

Z. C. Gao, V. A. Liskovets and N. C. Wormald, Enumeration of unrooted odd-valent regular planar maps, Preprint, 2006 (submitted).

CROSSREFS

Cf. A112946.

Sequence in context: A107955 A061331 A084003 this_sequence A155843 A039667 A045077

Adjacent sequences: A118092 A118093 A118094 this_sequence A118096 A118097 A118098

KEYWORD

nonn

AUTHOR

Valery A. Liskovets (liskov(AT)im.bas-net.by), Apr 13 2006

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Last modified November 25 13:47 EST 2009. Contains 167481 sequences.


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