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 A321709 #8 Dec 17 2018 19:33:06 %S A321709 640237370572800,125042114810880000,12663309118470912000, %T A321709 885531242655070387200,48050907406540671926016, %U A321709 2155959161260047868965120,83244478130310272277600000,2842577637658581528366266112,87562415111185051655245105920,2469899876154506406497571909952 %N A321709 Number of genus 9 rooted hypermaps with n darts. %H A321709 Peter Zograf, <a href="https://arxiv.org/abs/1312.2538">Enumeration of Grothendieck's Dessins and KP Hierarchy</a>, arXiv:1312.2538 [math.CO], 2014. %Y A321709 Column 9 of A321710. %K A321709 nonn %O A321709 19,1 %A A321709 _Gheorghe Coserea_, Nov 17 2018