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Search: id:A091426
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A091426 (1 + x^(18) + x^(21) + x^(22) + x^(23) + x^(24) + x^(27) + x^(45)) / ( (1 - x^8)*(1 - x^(12))*(1 - x^(14))*(1 - x^(15))). +0
1
1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 2, 2, 3, 0, 2, 2, 2, 2, 4, 2, 4, 2, 3, 4, 6, 4, 7, 5, 5, 4, 7, 5, 8, 8, 9, 8, 10, 7, 12, 11, 12, 12, 14, 10, 14, 13, 15, 16, 20, 16, 20, 18, 20, 20, 24, 21, 26, 24, 25, 25, 30, 26, 33, 32, 33, 33, 37, 33, 40, 38, 41, 42, 46, 41, 48 (list; graph; listen)
OFFSET

0,23

COMMENT

Poincare series (or Molien series) for F_2[x_1,\dots x_4]^(A_7).

REFERENCES

A. Adem and R. J. Milgram, Cohomology of Finite Groups, Springer-Verlag, 2nd. ed., 2004, last page of Chapter III.

CROSSREFS

Sequence in context: A073438 A139365 A071479 this_sequence A053761 A138067 A125093

Adjacent sequences: A091423 A091424 A091425 this_sequence A091427 A091428 A091429

KEYWORD

nonn

AUTHOR

njas, Mar 16 2004

page 1

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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