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Search: id:A123141
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| A123141 |
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Number of benzenoids with 23 hexagons, C_(2h) symmetry and containing n carbon atoms. |
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+0
1
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| 6, 45, 145, 510, 1706, 4697, 12446, 32297, 73731, 147440, 274532, 454304, 594505, 514849, 245895
(list; graph; listen)
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OFFSET
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66,1
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REFERENCES
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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.
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EXAMPLE
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If n=66 then the number of benzenoids with 23 hexagons with C_(2h) symmetry is 6.
If n=68 then the number of benzenoids with 23 hexagons with C_(2h) symmetry is 45.
If n=70 then the number of benzenoids with 23 hexagons with C_(2h) symmetry is 145.
If n=72 then the number of benzenoids with 23 hexagons with C_(2h) symmetry is 510.
If n=94 then the number of benzenoids with 23 hexagons with C_(2h) symmetry is 245895.
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CROSSREFS
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Cf. A122539, A121964, A122736, A123044, A123106, A123105, A123104.
Sequence in context: A063947 A006086 A131513 this_sequence A122096 A054563 A162230
Adjacent sequences: A123138 A123139 A123140 this_sequence A123142 A123143 A123144
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KEYWORD
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nonn
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Oct 01 2006
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