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%I #7 Jan 17 2025 12:29:47
%S 0,0,2,16,137,1254,12597,133518,1464725,16373700,185086459,2106417804,
%T 24081813881,276231542440,3176840637522
%N a(n) = number of non-orientable genus 2 maps with n edges.
%H Evgeniy Krasko and Alexander Omelchenko, <a href="https://arxiv.org/abs/1712.10139">Enumeration of Unsensed Orientable Maps on Surfaces of a Given Genus</a>, arXiv:1712.10139 [math.CO], 2017, see Appendix Table 5.
%Y Column k=2 of A380235.
%Y Cf. A348802, A348804, A348805, A348806, A348807, A348808, A348809, A348810, A348811.
%K nonn,more,changed
%O 0,3
%A _Michael De Vlieger_, Nov 01 2021