login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A121328 Number of bridged bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition). 0
1, 2, 6, 15, 41, 106, 288, 777, 2113, 5772, 15817, 43422, 119444, 329003, 907181, 2503971, 6916822, 19120891, 52892130, 146399126, 405437427 (list; graph; refs; listen; history; text; internal format)
OFFSET
5,2
REFERENCES
Camden A. Parks and James B. Hendrickson, Enumeration of monocyclic and bicyclic carbon skeletons, J. Chem. Inf. Comput. Sci., vol. 31, 334-339 (1991).
LINKS
CROSSREFS
Sequence in context: A303551 A180666 A280788 * A348012 A139379 A236110
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 27 2006
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 July 25 14:23 EDT 2024. Contains 374609 sequences. (Running on oeis4.)