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A323281 Number of 5-regular maps on the Klein bottle with n vertices and 2n edges. 0
610, 713230, 730427830, 714985017230, 684597649115160, 647152118916722050, 606713944500089445300, 565552162701658630787310, 524985730432063320579176680, 485790080943651818443229561080 (list; graph; refs; listen; history; text; internal format)
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

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Last modified April 20 06:19 EDT 2019. Contains 322294 sequences. (Running on oeis4.)