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A123105
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Number of benzenoids with 22 hexagons, C_(2h) symmetry and containing n carbon atoms.
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28
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2, 32, 138, 510, 1627, 4641, 12646, 31360, 70888, 144276, 261789, 409747, 524600, 462848, 232842
(list; graph; refs; listen; history; internal format)
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OFFSET
| 62,1
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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 6 on page 847.
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EXAMPLE
| If n=62 then the number of benzenoids with 22 hexagons with C_(2h) symmetry is 2.
If n=64 then the number of benzenoids with 22 hexagons with C_(2h) symmetry is 32.
If n=66 then the number of benzenoids with 22 hexagons with C_(2h) symmetry is 138.
If n=68 then the number of benzenoids with 22 hexagons with C_(2h) symmetry is 510.
If n=90 then the number of benzenoids with 22 hexagons with C_(2h) symmetry is 232842.
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CROSSREFS
| Cf. A122539, A121964, A122736, A123044.
Sequence in context: A122127 A191997 A112850 * A123287 A012642 A169833
Adjacent sequences: A123102 A123103 A123104 * A123106 A123107 A123108
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KEYWORD
| nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Sep 28 2006
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