Search: id:A028309
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%I A028309
%S A028309 1,1,2,3,5,6,9,11,15,18,23,27,33,38,45,51,59,66,75,83,93,
%T A028309 102,113,123,135,146,159,171,185,198,213,227,243,258,275,
%U A028309 291,309,326,345,363,383,402,423,443,465,486,509,531,555
%N A028309 Molien series for ring of symmetrized weight enumerators of self-dual 
               codes (with respect to Euclidean inner product) of length n over 
               GF(4).
%H A028309 G. Nebe, E. M. Rains and N. J. A. Sloane, <a href="http://www.research.att.com/
               ~njas/doc/cliff2.html">Self-Dual Codes and Invariant Theory</a>, 
               Springer, Berlin, 2006.
%H A028309 E. M. Rains and N. J. A. Sloane, Self-dual codes, pp. 177-294 of Handbook 
               of Coding Theory, Elsevier, 1998 (<a href="http://www.research.att.com/
               ~njas/doc/self.txt">Abstract</a>, <a href="http://www.research.att.com/
               ~njas/doc/self.pdf">pdf</a>, <a href="http://www.research.att.com/
               ~njas/doc/self.ps">ps</a>).
%H A028309 <a href="Sindx_Mo.html#Molien">Index entries for Molien series</a>
%p A028309 (1+x^8+x^16)/((1-x^2)*(1-x^4)*(1-x^6));
%Y A028309 Sequence in context: A070757 A123399 A104738 this_sequence A026810 A001400 
               A008773
%Y A028309 Adjacent sequences: A028306 A028307 A028308 this_sequence A028310 A028311 
               A028312
%K A028309 nonn
%O A028309 0,3
%A A028309 N. J. A. Sloane (njas(AT)research.att.com).

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