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 A091577 Poincaré series [or Poincare series] of the preprojective algebra of a Dynkin diagram of type E_6. 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; text; 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. LINKS CROSSREFS Cf. A091571, A091572, A091573, A091574, A091575, A091576. Sequence in context: A167200 A077667 A284945 * A115036 A332766 A315169 Adjacent sequences:  A091574 A091575 A091576 * A091578 A091579 A091580 KEYWORD easy,nonn AUTHOR Paul Boddington, Jan 22 2004 STATUS approved

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Last modified July 23 22:20 EDT 2021. Contains 346265 sequences. (Running on oeis4.)