%I #10 Mar 03 2023 07:58:04

%S 0,0,4,63,720,7254,68460,621315,5496208,47759130,409620156,3478672642,

%T 29315742924,245539064736,2046309441924,16983591315267

%N Number of rooted bipartite maps of genus 1 with n edges.

%H Valentin Bonzom, Guillaume Chapuy, and Maciej Dolega, <a href="https://doi.org/10.5802/alco.268">Enumeration of non-oriented maps via integrability</a>, Alg. Combin. 5 (6) (2022) pp. 1363-1390, A.2.

%Y Cf. A000257 (genus 0).

%K nonn,more

%O 1,3

%A _R. J. Mathar_, Mar 02 2023