login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A268571 Arises in counting maps on a surface: see Coquereaux-Zuber (2015) for precise definition. 1

%I

%S 0,0,1,1,2,5,16,52,205,863

%N Arises in counting maps on a surface: see Coquereaux-Zuber (2015) for precise definition.

%H R. Coquereaux, J.-B. Zuber, <a href="http://arxiv.org/abs/1507.03163">Maps, immersions and permutations</a>, arXiv preprint arXiv:1507.03163, 2015. Also J. Knot Theory Ramifications 25, 1650047 (2016), DOI: http://dx.doi.org/10.1142/S0218216516500474

%H Guy Valette, <a href="http://dx.doi.org/10.1007/s40598-016-0049-3">A Classification of Spherical Curves Based on Gauss Diagrams</a>, Arnold Math. J. (2016) 2:383-405, DOI 10.1007/s40598-016-0049-3. See Table 7 (although it is not certain that this is the same sequence - _N. J. A. Sloane_, Jul 17 2017).

%Y Cf. A008989.

%K nonn,more

%O 1,5

%A _N. J. A. Sloane_, Mar 03 2016

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 7 13:52 EDT 2022. Contains 355989 sequences. (Running on oeis4.)