A323281 Number of 5-regular maps on the Klein bottle with n vertices and 2n edges.

610, 713230, 730427830, 714985017230, 684597649115160, 647152118916722050, 606713944500089445300, 565552162701658630787310, 524985730432063320579176680, 485790080943651818443229561080

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Evgeniy Krasko, Alexander Omelchenko, Enumeration of r-regular maps on the torus. Part I: Rooted maps on the torus, the projective plane and the Klein bottle. Sensed maps on the torus, Discrete Mathematics (2019) Vol. 342, Issue 2, 584-599. Also arXiv:1709.03225 [math.CO]. See Table 3.

Crossrefs

Sequence in context: A223848 A223874 A223799 * A214855 A072323 A235381

Adjacent sequences: A323278 A323279 A323280 * A323282 A323283 A323284

Keyword

nonn

Author

N. J. A. Sloane, Jan 11 2019

Status

approved