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 A219904 #10 Jan 29 2023 09:16:42 %S A219904 0,0,0,0,16,136,111,272,565,1063,1844,3022,4717,7093,10319,14617 %N A219904 Number of isomorphism classes of IPR nanocones with 4 pentagons and a nearsymmetric boundary of length n. %H A219904 Gunnar Brinkmann and Nico Van Cleemput, <a href="https://doi.org/10.1016/j.dam.2011.06.014">Classification and generation of nanocones</a>, Discrete Applied Mathematics, 159 (2011), 1528-1539. %Y A219904 Cf. A197988, A198014, A198015, A198016, A198086. %Y A219904 Cf. A219901, A219902, A219903, A219905. %K A219904 nonn,more %O A219904 0,5 %A A219904 _N. J. A. Sloane_, Dec 01 2012