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A323279
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Number of 3-regular maps on the Klein bottle with n vertices.
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1
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OFFSET
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1,1
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LINKS
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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.
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CROSSREFS
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Sequence in context: A323820 A317795 A166762 * A214801 A233225 A055165
Adjacent sequences: A323276 A323277 A323278 * A323280 A323281 A323282
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KEYWORD
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nonn,more
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AUTHOR
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N. J. A. Sloane, Jan 11 2019
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STATUS
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approved
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