A123660
Number of fusenes with 25 hexagons, C_(2h) symmetry and containing 2n carbon atoms.
Original entry on oeis.org
4, 25, 132, 473, 1469, 4894, 14744, 39776, 105267, 265094, 591209, 1185497, 2215965, 3569692, 4408744, 3597040
Offset: 35
Cf.
A122539,
A121964,
A122736,
A123044,
A123106,
A123105,
A123104,
A123142,
A123289,
A123288,
A123287,
A123286,
A123285,
A123284,
A123277,
A123209,
A123205.
A123661
Number of fusenes with 26 hexagons, C_(2h) symmetry and containing 2n carbon atoms.
Original entry on oeis.org
8, 75, 346, 1284, 4408, 13534, 40148, 113583, 299614, 744570, 1718108, 3628442, 6915782, 11810625, 17106283
Offset: 36
Cf.
A122539,
A121964,
A122736,
A123044,
A123106,
A123105,
A123104,
A123142,
A123289,
A123288,
A123287,
A123286,
A123285,
A123284,
A123277,
A123209,
A123205.
A123662
Number of fusenes with 26 hexagons, C_(2v) symmetry and containing n carbon atoms.
Original entry on oeis.org
16, 21, 129, 121, 553, 462, 2001, 1454, 6808, 4111, 21081, 11349, 63181, 29269, 180890, 71268, 481635, 163071, 1217590, 344829, 2848636, 647233, 6121628, 1113172, 11846227, 1677481, 20694386, 2076402, 30600504
Offset: 72
If n=72 then the number of fusenes with 26 hexagons with C_(2v) symmetry is 16.
If n=73 then the number of fusenes with 26 hexagons with C_(2v) symmetry is 21.
If n=74 then the number of fusenes with 26 hexagons with C_(2v) symmetry is 129.
If n=75 then the number of fusenes with 26 hexagons with C_(2v) symmetry is 121.
If n=100 then the number of fusenes with 26 hexagons with C_(2v) symmetry is 30600504.
- 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 12 column 7 on page 850.
Cf.
A122539,
A121964,
A122736,
A123044,
A123106,
A123105,
A123104,
A123142,
A123289,
A123288,
A123287,
A123286,
A123285,
A123284,
A123277,
A123209,
A123205.