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A127825 G.f.: (1-2*x+2*x^2-x^3+x^4-x^5+2*x^6-2*x^7+x^8)/((1-x)^2*(1-x^2)*(1-x^3)*(1-x^6)). 0
1, 0, 2, 2, 4, 5, 11, 11, 20, 25, 35, 44, 63, 73, 99, 120, 150, 180, 226, 261, 320, 374, 442, 512, 605, 686, 800, 910, 1040, 1175, 1341, 1495, 1692, 1887, 2109, 2340, 2611, 2871, 3185, 3500, 3850, 4214, 4628, 5033, 5504, 5980, 6500, 7040, 7641, 8236, 8910, 9594 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

The ring with this Hilbert series is not an intersection ring.

REFERENCES

B. Broer, Hilbert series for modules of covariants, in Algebraic Groups and Their Generalizations..., Proc. Sympos. Pure Math., 56 (1994), Part I, 321-331.

FORMULA

Original g.f.: (1-2*t^4+2*t^8-t^12+t^16-t^20+2*t^24-2*t^28+t^32)/((1-t^4)^2*(1-t^8)*(1-t^12)*(1-t^24)).

CROSSREFS

Sequence in context: A125951 A054538 A095020 * A185100 A103420 A032258

Adjacent sequences:  A127822 A127823 A127824 * A127826 A127827 A127828

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Apr 07 2007

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Last modified February 15 08:40 EST 2012. Contains 205731 sequences.