A323929 Polycyclic aromatic hydrocarbons (for precise definition see He and He, 1986).
0, 0, 1, 1, 7, 30, 141, 671, 3284, 15998, 78505, 385766, 2214783, 9382168
Offset: 1
References
- 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.
Links
- Wenchen He and Wenjie He, Generation and enumeration of planar polycyclic aromatic hydrocarbons, Tetrahedron 42.19 (1986): 5291-5299. See Table 1.
Extensions
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