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 A248673 #13 May 15 2021 03:53:35 %S A248673 2,0,1,8,2,3,5,9,5,0,9,6,6,2,2,8,4,0,2,8,1,2,8,1,3,1,7,0,0,5,7,9 %N A248673 Decimal expansion of the solution to the Lane-Emden equation for a sphere of polytropic index n = 3. %D A248673 Steven R. Finch, Mathematical Constants II, Cambridge University Press, 2018, section 2.14, pp. 338-339. %H A248673 Vassilis S. Geroyannis and Vasileios G. Karageorgopoulos, <a href="https://arxiv.org/abs/1604.08019">A parallel code for multiprecision computations of the Lane-Emden differential equation</a>, arXiv:1604.08019 [astro-ph.SR], 2016. %H A248673 Wikipedia, <a href="http://en.wikipedia.org/wiki/Lane-Emden_equation">Lane-Emden equation</a>. %e A248673 2.0182359509662284028128131700579... %Y A248673 Cf. A010480 (n=0), A000796 (n=1), A248672 (n=2), A248674 (n=4), A002194 (n=5). %K A248673 nonn,cons,more %O A248673 1,1 %A A248673 _Arkadiusz Wesolowski_, Oct 11 2014 %E A248673 More terms from Geroyannis and Karageorgopoulos (2016) added by _Amiram Eldar_, May 15 2021