login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A000935
Number of free planar polyenoids with 2n nodes and symmetry point group C_{2h}.
1
0, 1, 2, 7, 20, 63, 191, 598, 1870, 5906
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,3
LINKS
Table of n, a(n) for n=1..10.
S. J. Cyvin, J. Brunvoll, E. Brendsdal, B. N. Cyvin and E. K. Lloyd,
Enumeration of polyene hydrocarbons: a complete mathematical solution
, J. Chem. Inf. Comput. Sci., 35 (1995) 743-751.
S. J. Cyvin, J. Brunvoll, E. Brendsdal, B. N. Cyvin and E. K. Lloyd,
Enumeration of polyene hydrocarbons: a complete mathematical solution
, J. Chem. Inf. Comput. Sci., 35 (1995) 743-751. [Annotated scanned copy]
CROSSREFS
Sequence in context:
A083379
A216246
A322202
*
A035071
A055891
A122877
Adjacent sequences:
A000932
A000933
A000934
*
A000936
A000937
A000938
KEYWORD
nonn
,
more
AUTHOR
E. K. Lloyd (E.K.Lloyd(AT)soton.ac.uk)
EXTENSIONS
a(8)-a(10) and improved title by
Sean A. Irvine
, Oct 15 2015
STATUS
approved
Lookup
|
Welcome
|
Wiki
|
Register
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Style Sheet
|
Transforms
|
Superseeker
|
Recents
The OEIS Community
| Maintained by
The OEIS Foundation Inc.
License Agreements, Terms of Use, Privacy Policy.
.
Last modified September 13 22:05 EDT 2024. Contains 375910 sequences. (Running on oeis4.)