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A123660
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Number of fusenes with 25 hexagons, C_(2h) symmetry and containing n carbon atoms.
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1
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4, 25, 132, 473, 1469, 4894, 14744, 39776, 105267, 265094, 591209, 1185497, 2215965, 3569692, 4408744, 3597040
(list; graph; refs; listen; history; internal format)
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OFFSET
| 70,1
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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) 842-851. See Table 11 column 6 on page 850.
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EXAMPLE
| If n=70 then the number of fusenes with 25 hexagons with C_(2h) symmetry is 4.
If n=72 then the number of fusenes with 25 hexagons with C_(2h) symmetry is 25.
If n=74 then the number of fusenes with 25 hexagons with C_(2h) symmetry is 132.
If n=76 then the number of fusenes with 25 hexagons with C_(2h) symmetry is 473.
If n=100 then the number of fusenes with 25 hexagons with C_(2h) symmetry is 3597040.
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CROSSREFS
| Cf. A122539, A121964, A122736, A123044, A123106, A123105, A123104, A123142, A123289, A123288, A123287, A123286, A123285, A123284, A123277, A123209, A123205.
Sequence in context: A069639 A175733 A013582 * A156701 A015533 A079291
Adjacent sequences: A123657 A123658 A123659 * A123661 A123662 A123663
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KEYWORD
| nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Nov 14 2006
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