A348803 a(n) = number of non-orientable genus 2 maps with n edges.

0, 0, 2, 16, 137, 1254, 12597, 133518, 1464725, 16373700, 185086459, 2106417804, 24081813881, 276231542440, 3176840637522

Offset

0,3

Links

Table of n, a(n) for n=0..14.

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.

Crossrefs

Column k=2 of A380235.

Cf. A348802, A348804, A348805, A348806, A348807, A348808, A348809, A348810, A348811.

Sequence in context: A067058 A002302 A378461 * A369580 A056662 A348618

Adjacent sequences: A348800 A348801 A348802 * A348804 A348805 A348806

Keyword

nonn,more

Author

Michael De Vlieger, Nov 01 2021

Status

approved