login
A123105
Number of benzenoids with 22 hexagons, C_(2h) symmetry and containing 2n carbon atoms.
26
2, 32, 138, 510, 1627, 4641, 12646, 31360, 70888, 144276, 261789, 409747, 524600, 462848, 232842
OFFSET
31,1
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 5 column 6 on page 847.
FORMULA
Sum_n a(n) = 2157946 = A121210(22). - Andrey Zabolotskiy, Nov 15 2023
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Parthasarathy Nambi, Sep 28 2006
EXTENSIONS
Name and offset edited by Andrey Zabolotskiy, Nov 15 2023
STATUS
approved