A123142 Number of benzenoids with 23 hexagons, C_(2v) symmetry and containing n carbon atoms.

2, 9, 33, 38, 235, 124, 704, 435, 2283, 1437, 6954, 3628, 17864, 9528, 43798, 24237, 106293, 53593, 228216, 104754, 431864, 188701, 760883, 300925, 1212591, 373411, 1536669, 305586, 1298746, 129710, 586556

Offset: 64

Author

Parthasarathy Nambi, Oct 01 2006

Keywords

• nonn

Examples

			If n=64 then the number of benzenoids with 23 hexagons with C_(2v) symmetry is 2.
If n=65 then the number of benzenoids with 23 hexagons with C_(2v) symmetry is 9.
If n=66 then the number of benzenoids with 23 hexagons with C_(2v) symmetry is 33.
If n=67 then the number of benzenoids with 23 hexagons with C_(2v) symmetry is 38.
If n=94 then the number of benzenoids with 23 hexagons with C_(2v) symmetry is 586556.
		

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) 842-851. See Table 6 column 7 on page 847.

Crossrefs

Cf. A122539, A121964, A122736, A123044, A123106, A123105, A123104.