|
Search: id:A108071
|
|
|
| A108071 |
|
Number of self-dual planar polyhexes with n hexagons. |
|
+0
3
|
|
| 1, 1, 2, 4, 8, 21, 53, 151, 458, 1477, 4918, 16956, 59494, 212364, 766753, 2796876, 10284793, 38096072, 141998218, 532301941, 2005638293, 7592441954, 28865031086, 110174528925, 422064799013, 1622379252093
(list; graph; listen)
|
|
|
OFFSET
|
1,3
|
|
|
REFERENCES
|
Gunnar Brinkmann, Gilles Caporossi and Pierre Hansen, A constructive enumeration of fusenes and benzenoids, Journal of Algorithms 45 (2002), pp. 155-166.
Gunnar Brinkmann, Gilles Caporossi and Pierre Hansen, A survey and new results on computer enumeration of polyhex and fusene hydrocarbons, J. Chem. Inf. Comput. Sci., 43 (2003), 842-851.
|
|
CROSSREFS
|
Cf. A018190, A108070, A108072.
Sequence in context: A059731 A001315 A002040 this_sequence A055876 A065847 A133604
Adjacent sequences: A108068 A108069 A108070 this_sequence A108072 A108073 A108074
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Gunnar Brinkmann (Gunnar.Brinkmann(AT)ugent.be), Jun 05 2005
|
|
|
Search completed in 0.002 seconds
|
