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%I #3 Mar 30 2012 16:50:29
%S 3,35,294,2099
%N Nonisomorphic catacondensed monoheptahelicenes (see reference for precise definition).
%D B. N. Cyvin et al., A class of polygonal systems representing polycyclic conjugated hydrocarbons ..., Monat. f. Chemie, 125 (1994), 1327-1337.
%K nonn
%O 5,1
%A _N. J. A. Sloane_, Aug 11 2006
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