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 A239919 #11 Jan 18 2025 19:31:07 %S A239919 1013582110,169857459866,15202559941266,964949198577434, %T A239919 48695382495936280,2077641325234343160,77856954571873092792, %U A239919 2629247239663140056192,81498694882848919958250,2350709723279734060249864,63759822591543968176310334,1639827731755812039740785472,40257891518670970262942165090 %N A239919 Number of unrooted maps with n edges of (orientable) genus 6. %H A239919 Andrew Howroyd, <a href="/A239919/b239919.txt">Table of n, a(n) for n = 12..60</a> %H A239919 Timothy R. S. Walsh, Alain Giorgetti, Alexander Mednykh, <a href="http://dx.doi.org/10.1016/j.disc.2011.11.027">Enumeration of unrooted orientable maps of arbitrary genus by number of edges and vertices</a>, Discrete Math. 312 (2012), no. 17, 2660--2671. MR2935417. %Y A239919 Column k=6 of A379438 %Y A239919 Cf. A238356 (rooted), A348798 (unsensed). %Y A239919 Cf. A006386, A104595, A104596, A215019, A239918. %K A239919 nonn %O A239919 12,1 %A A239919 _Alain Giorgetti_, Mar 29 2014 %E A239919 a(22) onwards added by _Andrew Howroyd_, Jan 18 2025