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, 191, 39670362, 4742588317460, 457373823022288900, 39758207592119720043060, 3253001744463113558023410456, 255859318139167527752722081113072

Offset: 0

Author

Valery A. Liskovets, Apr 13 2006

Keywords

• nonn

Comments

There is a closed formula.

Links

• Z. C. Gao, V. A. Liskovets and N. C. Wormald, Enumeration of unrooted odd-valent regular planar maps

Crossrefs

Cf. A112946.