id:A097869 - OEIS Search Results

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G.f.: (1+x^4+x^5+x^9)/((1-x)*(1-x^2)*(1-x^4)^2).

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	OFFSET	`0,3`
	COMMENT	`Molien series for group of order 128 acting on joint weight enumerators of a pair of binary self-dual codes is (1+x^8+x^10+x^18)/((1-x^2)(1-x^4)(1-x^8)^2).`
	LINKS	`F. J. MacWilliams, C. L. Mallows and N. J. A. Sloane, Generalizations of Gleason's theorem on weight enumerators of self-dual codes, IEEE Trans. Inform. Theory, 18 (1972), 794-805; see p. 804, Sect. 5.4.1.` `Index entries for Molien series`
	CROSSREFS	`Cf. A097870.` `Sequence in context: A021445 A011145 A079811 this_sequence A060303 A099577 A106168` `Adjacent sequences: A097866 A097867 A097868 this_sequence A097870 A097871 A097872`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Sep 02 2004`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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