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A091577 Poincare series of the preprojective algebra of a Dynkin diagram of type E_6. +0
8
6, 10, 14, 18, 20, 20, 20, 18, 14, 10, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; listen)
OFFSET

0,1

COMMENT

The series is a polynomial because the algebra is finite dimensional. See the entry for A091575 for a general formula.

REFERENCES

I. Reiten, Dynkin diagrams and the representation theory of algebras, Notices of the AMS, Vol. 44, Number 5.

CROSSREFS

Cf. A091571 - A091576.

Sequence in context: A075777 A167200 A077667 this_sequence A115036 A133653 A073760

Adjacent sequences: A091574 A091575 A091576 this_sequence A091578 A091579 A091580

KEYWORD

easy,nonn

AUTHOR

Paul Boddington (psb(AT)maths.warwick.ac.uk), Jan 22 2004

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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