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 A292972 #17 Dec 30 2018 16:45:34 %S A292972 15,6423,4031952,2839677570,2111005408320,1624203259187196, %T A292972 1280171373413389056,1027235174396893007472,835745211680299639976976, %U A292972 687471000510964612782875472 %N A292972 Number of 5-regular maps with 2n vertices on the torus, up to orientation-preserving isomorphisms. %H A292972 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 A292972 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 A292972 Cf. A292408 (3-regular), A292971 (4-regular), A292974 (6-regular). %K A292972 nonn,more %O A292972 1,1 %A A292972 _Evgeniy Krasko_, Sep 27 2017