0,4
B. N. Cyvin et al., A class of polygonal systems representing polycyclic conjugated hydrocarbons ..., Monat. f. Chemie, 125 (1994), 1327-1337.
Sequence in context: A000832 A143895 A034443 * A121073 A195023 A163724
Adjacent sequences: A121072 A121073 A121074 * A121076 A121077 A121078
nonn
N. J. A. Sloane (njas(AT)research.att.com), Aug 11 2006