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 A322930 #8 Jan 11 2019 17:02:44 %S A322930 22,864,40512,2075860,112225776,6289396632,361699896960, %T A322930 21210328632420,1262859239910000,76114899842912520 %N A322930 a(n) is the number of rooted 6-regular maps with n vertices on the projective plane. %H A322930 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:1709.03225 [math.CO], 2017. %H A322930 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, Pages 584-599. %K A322930 nonn,more %O A322930 1,1 %A A322930 _Evgeniy Krasko_, Dec 31 2018