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 A219902 #9 Jan 29 2023 07:45:26 %S A219902 0,0,5,14,32,57,97,145,215,295,402,522,675,842,1049,1272 %N A219902 Number of isomorphism classes of IPR nanocones with 3 pentagons and a nearsymmetric boundary of length n. %H A219902 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 A219902 Cf. A197988, A198014, A198015, A198016, A198086. %Y A219902 Cf. A219901, A219903, A219904, A219905. %K A219902 nonn,more %O A219902 0,3 %A A219902 _N. J. A. Sloane_, Dec 01 2012