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A348765 Number of unsensed 3-regular maps with 3*n edges on the projective plane. 1
2, 12, 85, 809, 9424, 126492, 1860338, 29040689, 471748746, 7884000856, 134620324619, 2338231754929, 41187966488148, 734195892785936 (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: A052867 A226238 A179495 * A208977 A097237 A055531

Adjacent sequences:  A348762 A348763 A348764 * A348766 A348767 A348768

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 31 2021

STATUS

approved

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Last modified June 27 04:01 EDT 2022. Contains 354888 sequences. (Running on oeis4.)