

A123595


Number of fusenes with 24 hexagons, C_(2h) symmetry and containing n carbon atoms.


0



18, 107, 427, 1490, 4649, 13793, 38582, 100944, 246047, 548966, 1103167, 1994983, 3083825, 3819606, 3274338, 1664015
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OFFSET

68,1


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) 842851. See Table 10 column 6 on page 849.


LINKS

Table of n, a(n) for n=68..83.


EXAMPLE

If n=68 then the number of fusenes with 24 hexagons with C_(2h) symmetry is 18.
If n=70 then the number of fusenes with 24 hexagons with C_(2h) symmetry is 107.
If n=72 then the number of fusenes with 24 hexagons with C_(2h) symmetry is 427.
If n=74 then the number of fusenes with 24 hexagons with C_(2h) symmetry is 1490.
If n=98 then the number of fusenes with 24 hexagons with C_(2h) symmetry is 1664015.


CROSSREFS

Cf. A122539, A121964, A122736, A123044, A123106, A123105, A123104, A123142, A123289, A123288, A123287, A123286, A123285, A123284.
Sequence in context: A322648 A285854 A123277 * A317461 A225219 A002165
Adjacent sequences: A123592 A123593 A123594 * A123596 A123597 A123598


KEYWORD

nonn


AUTHOR

Parthasarathy Nambi, Nov 14 2006


STATUS

approved



