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A361140
Number of rooted bipartite maps of genus 1 with n edges.
0
0, 0, 4, 63, 720, 7254, 68460, 621315, 5496208, 47759130, 409620156, 3478672642, 29315742924, 245539064736, 2046309441924, 16983591315267
OFFSET
1,3
LINKS
Valentin Bonzom, Guillaume Chapuy, and Maciej Dolega, Enumeration of non-oriented maps via integrability, Alg. Combin. 5 (6) (2022) pp. 1363-1390, A.2.
CROSSREFS
Cf. A000257 (genus 0).
Sequence in context: A094323 A286438 A224249 * A335112 A227619 A177788
KEYWORD
nonn,more
AUTHOR
R. J. Mathar, Mar 02 2023
STATUS
approved