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 A323926 #12 Feb 16 2023 16:11:58 %S A323926 1,1,2,6,15,51,190,765,3226,14131,63007,285772,995837,6061703 %N A323926 Polycyclic aromatic hydrocarbons (for precise definition see He and He, 1986). %D A323926 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 A323926 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 A323926 Cf. A003104, A323923-A323930, A256982. %K A323926 nonn,more %O A323926 1,3 %A A323926 _N. J. A. Sloane_, Feb 09 2019 %E A323926 a(10)-a(14) from Trinajstić et al. (Table 4.6, the number of Kekuléan polyhexes with h hexagons) added by _Andrey Zabolotskiy_, Feb 08 2023