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 A268562 #10 Jun 10 2024 15:00:55 %S A268562 2,6,20,108,776,7772,92172,1291048,20644140 %N A268562 Number of bicolored immersions of oriented circle into oriented surface with n double points, up to stable geotopy. %H A268562 Robert Coquereaux and Jean-Bernard Zuber, <a href="https://doi.org/10.1142/S0218216516500474">Maps, immersions and permutations</a>, Journal of Knot Theory and Its Ramifications, Vol. 25, No. 8 (2016), 1650047; <a href="https://arxiv.org/abs/1507.03163">arXiv preprint</a>, arXiv:1507.03163 [math.CO], 2015-2016. See Table 9, line OOc total. %Y A268562 Cf. A268559. %K A268562 nonn,more %O A268562 1,1 %A A268562 _N. J. A. Sloane_, Mar 02 2016 %E A268562 Name clarified by _Andrey Zabolotskiy_, Jun 09 2024