A091577 - OEIS

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A091577

Poincare series of the preprojective algebra of a Dynkin diagram of type E_6.

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; refs; listen; history; internal format)

	OFFSET	`0,1`
	COMMENTS	`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: A190712 A167200 A077667 * A115036 A133653 A073760` `Adjacent sequences: A091574 A091575 A091576 * A091578 A091579 A091580`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Boddington (psb(AT)maths.warwick.ac.uk), Jan 22 2004`

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Last modified February 14 03:37 EST 2012. Contains 205570 sequences.