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A286276 Number of proper orientable regular hypermaps on a surface of genus n, up to isomorphism and triality. 0
5, 12, 15, 15, 19, 20, 19, 41, 40, 22, 36 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

Needs more terms and a b-file (note that one of the links gives the first 100 terms).

LINKS

Table of n, a(n) for n=2..12.

Marston Conder, Home Page (Contains tables of regular maps, hypermaps and polytopes, trivalent symmetric graphs, and surface actions)

Marston Conder, Orientable proper regular hypermaps of genus 2 to 101

CROSSREFS

Sequence in context: A037007 A066025 A009824 * A314273 A087090 A161756

Adjacent sequences:  A286273 A286274 A286275 * A286277 A286278 A286279

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, May 08 2017

STATUS

approved

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Last modified September 26 06:16 EDT 2021. Contains 347664 sequences. (Running on oeis4.)