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A123044
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Number of benzenoids with 22 hexagons, C_(3h) symmetry and containing n carbon atoms.
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29
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OFFSET
| 63,2
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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 4 on page 847.
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EXAMPLE
| If n=63 then the number of benzenoids with 22 hexagons with C_(3h) symmetry is 1.
If n=66 then the number of benzenoids with 22 hexagons with C_(3h) symmetry is 2.
If n=69 then the number of benzenoids with 22 hexagons with C_(3h) symmetry is 8.
If n=72 then the number of benzenoids with 22 hexagons with C_(3h) symmetry is 21.
If n=90 then the number of benzenoids with 22 hexagons with C_(3h) symmetry is 755.
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CROSSREFS
| Cf. A122539, A121964, A122736.
Sequence in context: A034519 A014409 A109782 * A143229 A123285 A143212
Adjacent sequences: A123041 A123042 A123043 * A123045 A123046 A123047
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KEYWORD
| nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Sep 25 2006
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