login
A123106
Number of benzenoids with 22 hexagons, C_(2v) symmetry and containing n carbon atoms.
26
4, 8, 56, 54, 211, 178, 770, 493, 2349, 1193, 6479, 2788, 16960, 5908, 40657, 11169, 89378, 19138, 176325, 27984, 311332, 36524, 478536, 35025, 599661, 20387, 517568, 0, 251310
OFFSET
62,1
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) pp. 842-851. See Table 5 column 7 on page 847.
FORMULA
Sum_n a(n) = 2652445 = A120991(22). - Andrey Zabolotskiy, Nov 09 2023
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Parthasarathy Nambi, Sep 28 2006
EXTENSIONS
a(89) = 0 inserted by Andrey Zabolotskiy, Nov 09 2023
STATUS
approved