A121329 Number of bridged bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition).

0, 1, 5, 23, 88, 313, 1054, 3431, 10880, 33867, 103836, 314757, 945067, 2816287, 8339029, 24562712, 72025232, 210399896, 612602926, 1778618989, 5589730484

Offset

5,3

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

Table of n, a(n) for n=5..25.

Crossrefs

Sequence in context: A147359 A034447 A255803 * A246175 A362764 A283224

Adjacent sequences: A121326 A121327 A121328 * A121330 A121331 A121332

Keyword

nonn

Author

N. J. A. Sloane, Aug 27 2006

Status

approved