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 A292974 #11 Dec 30 2018 17:48:56 %S A292974 3,81,3313,171282,9444158,541659909,31819176850,1902508129720, %T A292974 115307287484560,7064528615347192,436658221692698200, %U A292974 27188662712300575980,1703444238720524912060 %N A292974 Number of 6-regular maps with n vertices on the torus, up to orientation-preserving isomorphisms. %H A292974 E. Krasko, A. Omelchenko, <a href="https://arxiv.org/abs/1709.03225">Enumeration of r-regular Maps on the Torus. Part I: Enumeration of Rooted and Sensed Maps</a>, arXiv preprint arXiv:1709.03225 [math.CO], 2017. %H A292974 E. Krasko, A. Omelchenko, <a href="https://doi.org/10.1016/j.disc.2018.07.013">Enumeration of r-regular maps on the torus. Part I: Rooted maps on the torus, the projective plane and the Klein bottle. Sensed maps on the torus</a>, Discrete Mathematics, Volume 342, Issue 2, February 2019, pp. 584-599. %Y A292974 Cf. A292408 (3-regular), A292971 (4-regular), A292972 (5-regular). %K A292974 nonn,more %O A292974 1,1 %A A292974 _Evgeniy Krasko_, Sep 27 2017