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 A323929 #12 Feb 16 2023 16:12:17 %S A323929 0,0,1,1,7,30,141,671,3284,15998,78505,385766,2214783,9382168 %N A323929 Polycyclic aromatic hydrocarbons (for precise definition see He and He, 1986). %D A323929 N. Trinajstić, S. Nikolić, J. V. Knop, W. R. Müller and K. Szymanski, Computational Chemical Graph Theory: Characterization, Enumeration, and Generation of Chemical Structures by Computer Methods, Ellis Horwood, 1991. %H A323929 Wenchen He and Wenjie He, <a href="https://doi.org/10.1016/S0040-4020(01)82078-0">Generation and enumeration of planar polycyclic aromatic hydrocarbons</a>, Tetrahedron 42.19 (1986): 5291-5299. See Table 1. %Y A323929 Cf. A003104, A323923-A323930, A256981. %K A323929 nonn,more %O A323929 1,5 %A A323929 _N. J. A. Sloane_, Feb 09 2019 %E A323929 a(10)-a(14) from Trinajstić et al. (Table 4.11, the number of non-Kekuléan polyhexes with h hexagons) added by _Andrey Zabolotskiy_, Feb 08 2023