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Search: id:A144060
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| A144060 |
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Expansion of Molien series for the ring of genus 5 code polynomials for Type II codes. |
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1
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| 1, 0, 1, 0, 2, 2, 8, 8, 34, 60, 203, 553, 2063, 7359, 30811, 127416, 541644, 2235677, 8966371, 34413747, 126465849, 443858877, 1490702752, 4796609651, 14821521743
(list; graph; listen)
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OFFSET
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0,5
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REFERENCES
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M. Oura (ohura(AT)math.kyushu-u.ac.jp), The dimension formula for the ring of code polynomials in genus 4, Osaka J. Math. 34 (1997), 53-72.
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LINKS
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G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.
M. Oura, Untitled
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FORMULA
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Oura (see link) gives the Molien series explicitly.
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EXAMPLE
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1 + x^8 + 2*x^16 + 2*x^20 + 8*x^24 + 8*x^28 + 34*x^32 + 60*x^36 + 203*x^40 + 553*x^44 + 2063*x^48 +
7359*x^52 + 30811*x^56 + 127416*x^60 + 541644*x^64 + 2235677*x^68 + 8966371*x^72 + 34413747*x^76 +
126465849*x^80 + 443858877*x^84 + 1490702752*x^88 + 4796609651*x^92 + 14821521743*x^96 + .....
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CROSSREFS
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Cf. A027672, A051354.
Sequence in context: A162959 A158302 A007083 this_sequence A016119 A037223 A066988
Adjacent sequences: A144057 A144058 A144059 this_sequence A144061 A144062 A144063
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Dec 22 2008, following a suggestion from G. Nebe.
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