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A348766 Number of unsensed 4-regular maps with 2*n edges on the Klein bottle. 1
2, 17, 182, 2480, 39386, 683425, 12420653, 231663025, 4389204048, 8404711549, 1622042005924, 31498163968678, 614779607286912, 12051129466850869 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

Krasko, Evgeniy, and Alexander Omelchenko. "Enumeration of unsensed r-regular maps on the projective plane and the Klein bottle." Discrete Mathematics 344.11 (2021): #112528.

LINKS

Table of n, a(n) for n=1..14.

CROSSREFS

Cf. A348764-A348767.

Sequence in context: A058010 A242428 A199751 * A126752 A234461 A277768

Adjacent sequences:  A348763 A348764 A348765 * A348767 A348768 A348769

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 31 2021

STATUS

approved

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Last modified July 1 15:17 EDT 2022. Contains 354973 sequences. (Running on oeis4.)