login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A292110 Number of 6-regular maps with n vertices on the torus, up to orientation-preserving and orientation-reversing isomorphisms. 2
3, 61, 1936, 89986, 4791784, 272005507, 15929826713, 951610091294, 57659992554993, 3532378891197016, 218331197907776846, 13594369669588615612 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

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. See Table 1, p. 20.

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

Cf. A292405, A292408, A292468, A292109.

Sequence in context: A224451 A239792 A009476 * A173366 A125661 A077353

Adjacent sequences:  A292107 A292108 A292109 * A292111 A292112 A292113

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Sep 20 2017

EXTENSIONS

a(11)-a(12) from Evgeniy Krasko, Sep 27 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 10 20:35 EDT 2021. Contains 342856 sequences. (Running on oeis4.)