A264065 Number of labeled connected non-planar projective-planar K{3,3}-free graphs with n vertices.

1, 150, 16800, 1809360, 206725050, 26484163020, 3942600552660, 694822388340960, 145100505844928205, 35439528882292735200, 9927470411345581984890, 3128005716477250367216640, 1090689073286188397027568380, 415560636438834909293721364320, 171338083303545263513720985887520

Offset

5,2

Links

Table of n, a(n) for n=5..19.

A. Gagarin, G. Labelle and P. Leroux, Counting labeled projective-planar graphs without a K_{3,3}-subdivision, arXiv:math/0406140 [math.CO], 2004-2006.

Crossrefs

Sequence in context: A289309 A337032 A250537 * A264324 A145631 A159737

Adjacent sequences: A264062 A264063 A264064 * A264066 A264067 A264068

Keyword

nonn

Author

Michel Marcus, Nov 02 2015

Status

approved