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A092544 Molien series for complete weight enumerators of self-dual codes over Z/8Z. +0
3
1, 1, 1, 5, 23, 54, 120, 263, 557, 1058, 1883, 3260, 5490, 8844, 13754, 20916, 31201, 45447, 64787, 90925, 125881, 171626, 230670, 306511, 403205, 524760, 676017, 863456, 1094420, 1376184, 1717308, 2128800, 2622977, 3212093, 3910205, 4734941, 5705771, 6842078 (list; graph; listen)
OFFSET

0,4
LINKS

G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.

Index entries for Molien series

FORMULA

G.f.: u1/u2 where u1 := subs(x=x^2, f); u2 := (1-x^2)^4*(1-x^8)^2*(1-x^16)^2; and

f := 1 - 3*x + 3*x^2 + 3*x^3 + 4*x^4-5*x^5 + 17*x^6 + 14*x^7 + 19*x^8 + 7*x^9 + 12*x^10 + 68*x^11 + 7*x^12 + 5*x^13 + 28*x^14 + 34*x^15 + 20*x^16 + 4*x^17 + x^18 + 9*x^19 + 13*x^20 - 8*x^21 + 3*x^22.

CROSSREFS

Cf. A092545-A092547.

Sequence in context: A155851 A019267 A053664 this_sequence A098499 A075565 A075707

Adjacent sequences: A092541 A092542 A092543 this_sequence A092545 A092546 A092547

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Apr 09 2004

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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