A286278 Number of proper chiral (irreflexible) orientably-regular hypermaps on a surface of genus n, up to isomorphism, triality and reflection.

0, 1, 1, 0, 1, 1, 2, 2, 6, 5, 7, 1, 4, 6, 7, 8, 1, 12, 3, 11, 13, 0, 8, 7, 9, 11, 14, 10, 3, 18, 5, 15, 19, 9, 11, 14, 4, 11, 33, 46, 4, 24, 5, 15, 24, 3, 6, 31, 26, 33, 15, 21, 8, 34, 12, 40, 24, 16, 12, 48, 4, 13, 75, 55, 12, 16, 8, 22, 18, 31, 10, 77, 10

Offset

2,7

Links

Andrey Zabolotskiy, Table of n, a(n) for n = 2..101

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

Marston Conder, Chiral proper orientably-regular hypermaps of genus 2 to 101

Crossrefs

Sequence in context: A379822 A115255 A055924 * A156563 A201500 A054917

Adjacent sequences: A286275 A286276 A286277 * A286279 A286280 A286281

Keyword

nonn

Author

N. J. A. Sloane, May 08 2017

Extensions

Terms a(25) and beyond from Conder's file added by Andrey Zabolotskiy, Dec 14 2022

Status

approved