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A123141
Number of benzenoids with 23 hexagons, C_(2h) symmetry and containing 2n carbon atoms.
0
6, 45, 145, 510, 1706, 4697, 12446, 32297, 73731, 147440, 274532, 454304, 594505, 514849, 245895
OFFSET
33,1
LINKS
G. Brinkmann, G. Caporossi and P. Hansen, A Survey and New Results on Computer Enumeration of Polyhex and Fusene Hydrocarbons, J. Chem. Inf. Comput. Sci., vol. 43 (2003) 842-851. See Table 6 column 6 on page 847.
FORMULA
Sum_n a(n) = 2357108 = A121210(23). - Andrey Zabolotskiy, Nov 15 2023
KEYWORD
nonn,fini,full
AUTHOR
Parthasarathy Nambi, Oct 01 2006
EXTENSIONS
Name and offset edited by Andrey Zabolotskiy, Nov 15 2023
STATUS
approved