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A170976 Expansion of (Product_{i=1..m-1} (1 + x^(4*i-1))) * (1 + x^(2*m-1)) for m = 4. 0
1, 0, 0, 1, 0, 0, 0, 2, 0, 0, 2, 1, 0, 0, 2, 0, 0, 1, 2, 0, 0, 2, 0, 0, 0, 1, 0, 0, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,8

COMMENTS

(Product_{i=1..m-1} (1 + x^(4*i-1))) * (1 + x^(2*m-1)) is the Poincaré polynomial for O(2m).

REFERENCES

H. Weyl, The Classical Groups, Princeton, 1946, see p. 238.

LINKS

Table of n, a(n) for n=0..28.

CROSSREFS

Sequence in context: A093693 A224447 A025436 * A134109 A325227 A325188

Adjacent sequences:  A170973 A170974 A170975 * A170977 A170978 A170979

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane, Aug 29 2010

STATUS

approved

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Last modified October 26 22:19 EDT 2021. Contains 348269 sequences. (Running on oeis4.)