%I #11 Dec 14 2022 10:55:21

%S 0,0,1,0,1,0,0,1,5,0,1,0,1,0,2,4,0,0,1,0,3,1,0,2,5,0,1,3,11,0,1,0,12,

%T 0,0,0,3,0,1,2,3,0,4,0,6,3,0,0,3,0,5,1,0,0,2,4,10,0,5,0,3,0,1,8,7,0,0,

%U 0,8,0,10,0,2,0,1,2,6,4,0,0,20,5,0,0,10

%N Number of proper non-orientable regular hypermaps on a surface of genus n, up to isomorphism and triality.

%H Andrey Zabolotskiy, <a href="/A286277/b286277.txt">Table of n, a(n) for n = 2..202</a>

%H Marston Conder, <a href="https://www.math.auckland.ac.nz/~conder/">Home Page</a> (Contains tables of regular maps, hypermaps and polytopes, trivalent symmetric graphs, and surface actions)

%H Marston Conder, <a href="https://www.math.auckland.ac.nz/~conder/NonorientableProperHypermaps202.txt">Non-orientable proper regular hypermaps of genus 2 to 202</a>

%K nonn

%O 2,9

%A _N. J. A. Sloane_, May 08 2017

%E Terms a(25) and beyond from Conder's file added by _Andrey Zabolotskiy_, Dec 14 2022