A348802 a(n) = number of non-orientable genus 1 maps with n edges.
0, 1, 4, 19, 106, 709, 5356, 44558, 397146, 3716039, 35967272, 356784008, 3605014966, 36955965852, 383320824698
Offset: 0
Links
- Evgeniy Krasko and Alexander Omelchenko, Enumeration of Unsensed Orientable Maps on Surfaces of a Given Genus, arXiv:1712.10139 [math.CO], 2017, see Appendix Table 5.