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%I #7 May 15 2023 11:37:48
%S 0,0,0,0,0,1,8,71,542,3857
%N Number of n-celled helicenes without holes.
%D J. V. Knop et al., On the total number of polyhexes, Match, No. 16 (1984), 119-134.
%H J. V. Knop, K. Szymanski, Ž. Jeričević, and N. Trinajstić, <a href="http://match.pmf.kg.ac.rs/electronic_versions/Match16/match16_119-134.pdf">On the total number of polyhexes</a>, Match, No. 16 (1984), 119-134.
%Y Cf. A018190, A038143-A038147.
%K nonn
%O 1,7
%A _N. J. A. Sloane_.