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A286278 Number of proper chiral (irreflexible) orientably-regular hypermaps on a surface of genus n, up to isomorphism, triality and reflection. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,7
LINKS
Marston Conder, Home Page (Contains tables of regular maps, hypermaps and polytopes, trivalent symmetric graphs, and surface actions)
CROSSREFS
Sequence in context: A300628 A115255 A055924 * A156563 A201500 A054917
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

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Last modified March 28 15:28 EDT 2024. Contains 371254 sequences. (Running on oeis4.)