OFFSET
2,2
REFERENCES
A. T. Balaban, Enumeration of Cyclic Graphs, pp. 63-105 of A. T. Balaban, ed., Chemical Applications of Graph Theory, Ac. Press, 1976; see p. 92.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 13 2004
STATUS
approved