A361138 Number of rooted maps of genus 1 with n edges.

0, 5, 104, 1647, 23560, 320198, 4222792, 54617267, 696972524, 8807574390, 110483092984, 1377998069826, 17108920039328, 211636362018548, 2609949110616064, 32104324480419131

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Valentin Bonzom, Guillaume Chapuy, and Maciej Dolega, Enumeration of non-oriented maps via integrability, Alg. Combin. 5 (6) (2022) pp. 1363-1390, A.1.

Crossrefs

Cf. A000168 (genus 0).

Sequence in context: A163154 A354157 A165387 * A156848 A057016 A193340

Adjacent sequences: A361135 A361136 A361137 * A361139 A361140 A361141

Keyword

nonn,more

Author

R. J. Mathar, Mar 02 2023

Status

approved