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A125672
Classification of bicyclics with the parameter 'alpha' having the value of 3. See the paper by Hendrickson and Parks for details.
1
1, 3, 11, 35, 113, 351, 1093, 3348, 10218, 30906, 93005
OFFSET
5,2
COMMENTS
Here 'alpha' is the number of atoms the two rings have in common.
REFERENCES
James B. Hendrickson and Camden A. Parks, "Generation and Enumeration of Carbon Skeletons", J. Chem. Inf. Comput. Sci., vol. 31 (1991), pp. 101-107. See Table VII column 5 on page 104.
EXAMPLE
If n=5 then the number of bicyclics when 'alpha' = three is 1.
If n=6 then the number of bicyclics when 'alpha' = three is 3.
If n=7 then the number of bicyclics when 'alpha' = three is 11.
If n=8 then the number of bicyclics when 'alpha' = three is 35.
CROSSREFS
KEYWORD
nonn
AUTHOR
Parthasarathy Nambi, Jan 29 2007
STATUS
approved