|
| |
|
|
A030532
|
|
Number of polyhexes of class PF2.
|
|
9
| |
|
|
0, 1, 6, 35, 168, 807, 3738, 17326, 79909, 369366, 1709123, 7929590, 36880231
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 4,3
|
|
|
COMMENTS
| See reference for precise definition.
|
|
|
REFERENCES
| S. J. Cyvin et al., Enumeration and classification of benzenoid systems 32. Normal perifusenes with two internal vertices, J. Chem. Inform. Comput. Sci., 32 (1992), 532-540.
|
|
|
CROSSREFS
| Cf. A026106, A026118, A026298, A030519, A030520, A030525, A030529, A030532, A030534.
Sequence in context: A203288 A026957 A026987 * A026997 A014337 A002041
Adjacent sequences: A030529 A030530 A030531 * A030533 A030534 A030535
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
