A286276 Number of proper orientable regular hypermaps on a surface of genus n, up to isomorphism and triality.

5, 12, 15, 15, 19, 20, 19, 41, 40, 22, 36, 49, 24, 54, 51, 61, 46, 67, 39, 81, 56, 33, 74, 117, 47, 71, 113, 87, 83, 75, 54, 196, 61, 68, 126, 180, 45, 89, 121, 175, 92, 86, 66, 176, 145, 52, 135, 298, 86, 128, 123, 129, 126, 227, 121, 282, 104, 70, 171, 178

Offset

2,1

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, Orientable proper regular hypermaps of genus 2 to 101

Crossrefs

Sequence in context: A357999 A066025 A009824 * A314273 A087090 A161756

Adjacent sequences: A286273 A286274 A286275 * A286277 A286278 A286279

Keyword

nonn

Author

N. J. A. Sloane, May 08 2017

Extensions

Terms a(13) and beyond from Conder's file added by Andrey Zabolotskiy, Dec 14 2022

Status

approved