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A121333 Number of bridged bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition). +0
6
0, 0, 0, 1, 6, 32, 140, 567, 2141, 7731, 26929, 91269, 302566, 985178, 3160480, 10013151, 31390529, 97519183, 300596765, 920275456, 2800635344 (list; graph; listen)
OFFSET

5,5

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).

CROSSREFS

Sequence in context: A000397 A130410 A027217 this_sequence A046725 A006668 A037530

Adjacent sequences: A121330 A121331 A121332 this_sequence A121334 A121335 A121336

KEYWORD

nonn

AUTHOR

njas, Aug 27 2006

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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