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 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, 251310 (list; graph; refs; listen; history; text; internal format)
 OFFSET 62,1 REFERENCES 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. LINKS EXAMPLE If n=62 then the number of benzenoids with 22 hexagons with C_(2v) symmetry is 4. If n=63 then the number of benzenoids with 22 hexagons with C_(2v) symmetry is 8. If n=64 then the number of benzenoids with 22 hexagons with C_(2v) symmetry is 56. If n=65 then the number of benzenoids with 22 hexagons with C_(2v) symmetry is 54. If n=90 then the number of benzenoids with 22 hexagons with C_(2v) symmetry is 251310. CROSSREFS Cf. A122539, A121964, A122736, A123044. Sequence in context: A214603 A192508 A231601 * A123288 A192200 A063083 Adjacent sequences:  A123103 A123104 A123105 * A123107 A123108 A123109 KEYWORD nonn AUTHOR Parthasarathy Nambi, Sep 28 2006 STATUS approved

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Last modified June 20 17:51 EDT 2019. Contains 324234 sequences. (Running on oeis4.)