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A121075
Nonisomorphic catacondensed monoheptabenzenoids (see reference for precise definition).
0
0, 0, 1, 10, 47, 221, 970, 4241, 18294
OFFSET
0,4
REFERENCES
B. N. Cyvin et al., A class of polygonal systems representing polycyclic conjugated hydrocarbons ..., Monat. f. Chemie, 125 (1994), 1327-1337.
CROSSREFS
Sequence in context: A319491 A034443 A304626 * A121073 A210371 A195023
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 11 2006
STATUS
approved