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A123602 Number of fusenes with 25 hexagons, D_(3h) symmetry and containing n carbon atoms. 0
1, 2, 1, 1, 1, 8, 3, 18, 38 (list; graph; refs; listen; history; text; internal format)
OFFSET

69,2

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 11 column 3 on page 850.

LINKS

Table of n, a(n) for n=69..77.

EXAMPLE

If n=69 then the number of fusenes with 25 hexagons with D_(3h) symmetry is 1.

If n=72 then the number of fusenes with 25 hexagons with D_(3h) symmetry is 2.

If n=75 then the number of fusenes with 25 hexagons with D_(3h) symmetry is 1.

If n=78 then the number of fusenes with 25 hexagons with D_(3h) symmetry is 1.

If n=96 then the number of fusenes with 25 hexagons with D_(3h) symmetry is 38.

CROSSREFS

Cf. A122539, A121964, A122736, A123044, A123106, A123105, A123104, A123142, A123289, A123288, A123287, A123286, A123285, A123284, A123277, A123209, A123205.

Sequence in context: A322143 A264081 A061538 * A208896 A288972 A065521

Adjacent sequences:  A123599 A123600 A123601 * A123603 A123604 A123605

KEYWORD

nonn

AUTHOR

Parthasarathy Nambi, Nov 14 2006

STATUS

approved

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Last modified September 21 02:28 EDT 2020. Contains 337266 sequences. (Running on oeis4.)