Search: id:A030520
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%I A030520
%S A030520 1,5,20,82,335,1402
%N A030520 Number of polyhexes of class PF2.
%C A030520 See reference for precise definition.
%D A030520 S. J. Cyvin et al., Enumeration and classification of benzenoid systems 
               32. Normal perifusenes with two internal vertices, J. Chem. Inform. 
               Comput. Sci., 32 (1992), 532-540.
%Y A030520 Cf. A026106, A026118, A026298, A030519, A030520, A030525, A030529, A030532, 
               A030534.
%Y A030520 Sequence in context: A033131 A022021 A165203 this_sequence A056884 A006749 
               A002213
%Y A030520 Adjacent sequences: A030517 A030518 A030519 this_sequence A030521 A030522 
               A030523
%K A030520 nonn
%O A030520 2,2
%A A030520 N. J. A. Sloane (njas(AT)research.att.com).

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