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A292109
Number of 5-regular maps with 2n vertices on the torus, up to orientation-preserving and orientation-reversing isomorphisms.
3
13, 3523, 2035550, 1421177130, 1055597813091, 812108624237833, 640086212334600319, 513617627395229165708, 417872608954804473932525, 343735500499416537210021983
OFFSET
1,1
LINKS
E. Krasko, A. Omelchenko, Enumeration of r-regular Maps on the Torus. Part II: Enumeration of Unsensed Maps, arXiv preprint arXiv:1709.03230[math.CO], 2017.
E. Krasko, A. Omelchenko, Enumeration of r-regular maps on the torus. Part II: Unsensed maps, Discrete Mathematics, Volume 342, Issue 2, February 2019, pp. 600-614.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Sep 20 2017
STATUS
approved