A008630 Molien series for A_7.

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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

References

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

Links

• 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).

Programs

Maple

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