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Search: id:A123140
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| A123140 |
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Number of benzenoids with 23 hexagons, D_(2h) symmetry and containing n carbon atoms. |
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+0
1
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| 1, 3, 3, 6, 13, 19, 24, 35, 45, 79, 70, 108, 70, 169, 103
(list; graph; listen)
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OFFSET
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64,2
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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 5 on page 847.
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EXAMPLE
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If n=64 then the number of benzenoids with 23 hexagons with D_(2h) symmetry is 1.
If n=66 then the number of benzenoids with 23 hexagons with D_(2h) symmetry is 3.
If n=68 then the number of benzenoids with 23 hexagons with D_(2h) symmetry is 3.
If n=70 then the number of benzenoids with 23 hexagons with D_(2h) symmetry is 6.
If n=94 then the number of benzenoids with 23 hexagons with D_(2h) symmetry is 103.
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CROSSREFS
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Cf. A122539, A121964, A122736, A123044, A123106, A123105, A123104.
Sequence in context: A050067 A046875 A056494 this_sequence A123289 A096572 A110523
Adjacent sequences: A123137 A123138 A123139 this_sequence A123141 A123142 A123143
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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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