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A008624 G.f.: (1+x^6)/((1-x^4)(1-x^8)). +0
3
1, 0, 1, 1, 2, 1, 2, 2, 3, 2, 3, 3, 4, 3, 4, 4, 5, 4, 5, 5, 6, 5, 6, 6, 7, 6, 7, 7, 8, 7, 8, 8, 9, 8, 9, 9, 10, 9, 10, 10, 11, 10, 11, 11, 12, 11, 12, 12, 13, 12, 13, 13, 14, 13, 14, 14, 15, 14, 15, 15, 16, 15, 16, 16, 17 (list; graph; listen)
OFFSET

0,5

COMMENT

Molien series of 2-dimensional representation of group of order 16 over GF(3).

a(n) = A110654(A028242(n)). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 05 2005

REFERENCES

D. J. Benson, Polynomial Invariants of Finite Groups, Cambridge, 1993, p. 107.

LINKS

Index entries for Molien series

FORMULA

a(n) = floor(n/8) + (n mod 2 + 1 - floor((n mod 4)/3)) mod 2. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 05 2005

MAPLE

(1+x^6)/(1-x^4)/(1-x^8);

CROSSREFS

Essentially the same as A059169.

Cf. A110659.

Adjacent sequences: A008621 A008622 A008623 this_sequence A008625 A008626 A008627

Sequence in context: A029363 A033922 A026922 this_sequence A059169 A027349 A053277

KEYWORD

nonn,easy

AUTHOR

njas

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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