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A008630 Molien series for A_7. 1
1, 1, 2, 3, 5, 7, 11, 15, 21, 28, 38, 49, 65, 82, 105, 131, 164, 201, 248, 300, 364, 437, 523, 620, 736, 865, 1016, 1186, 1382, 1600, 1852, 2131, 2449, 2803, 3202, 3644, 4142, 4690, 5303, 5979, 6730 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

D. J. Benson, Polynomial Invariants of Finite Groups, Cambridge, 1993, p. 105.

LINKS

Table of n, a(n) for n=0..40.

Index entries for Molien series

Index entries for linear recurrences with constant coefficients, signature (1, 1, 1, -1, -2, -1, 0, 1, 1, 1, 0, 1, -1, 0, -1, -1, -1, 0, 1, 2, 1, -1, -1, -1, 1).

MAPLE

(1+x^21)/(1-x)/(1-x^2)/(1-x^3)/(1-x^4)/(1-x^5)/(1-x^6)/(1-x^7)

CROSSREFS

Sequence in context: A218507 A026813 A008636 * A238865 A035969 A042953

Adjacent sequences:  A008627 A008628 A008629 * A008631 A008632 A008633

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified March 18 13:47 EDT 2019. Contains 321289 sequences. (Running on oeis4.)