This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A361140 #10 Mar 03 2023 07:58:04 %S A361140 0,0,4,63,720,7254,68460,621315,5496208,47759130,409620156,3478672642, %T A361140 29315742924,245539064736,2046309441924,16983591315267 %N A361140 Number of rooted bipartite maps of genus 1 with n edges. %H A361140 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 A361140 Cf. A000257 (genus 0). %K A361140 nonn,more %O A361140 1,3 %A A361140 _R. J. Mathar_, Mar 02 2023