|
Search: id:A014670
|
|
|
| A014670 |
|
G.f.: (1+x)*(1+x^3)*(1+x^5)*(1+x^7)*(1+x^9)/((1-x^2)*(1-x^4)*(1-x^6)*(1-x^8)*(1-x^10)). |
|
+0
1
|
|
| 1, 1, 1, 2, 3, 4, 5, 7, 10, 13, 16, 20, 26, 32, 38, 47, 58, 69, 81, 96, 114, 133, 153, 177, 206, 236, 267, 304, 346, 390, 437, 490, 550, 613, 679, 753, 835, 921, 1011, 1111, 1221, 1335, 1455, 1586, 1728, 1877, 2032, 2200, 2382, 2571, 2768, 2980, 3207, 3443, 3689, 3952
(list; graph; listen)
|
|
|
OFFSET
|
0,4
|
|
|
COMMENT
|
Poincare series (or Molien series) for symmetric invariants in F_2(b_1, b_2, ... b_n) \otimes E(e_1, e_2, ... e_n) with b_i 2-dimensional, e_i one-dimensional and the permutation action of S_n, in the case n=5.
|
|
REFERENCES
|
A. Adem and R. J. Milgram, Cohomology of Finite Groups, Springer-Verlag, 2nd. ed., 2004; p. 108.
|
|
CROSSREFS
|
Cf. A006950, A000933, A089597.
Adjacent sequences: A014667 A014668 A014669 this_sequence A014671 A014672 A014673
Sequence in context: A104665 A094018 A071682 this_sequence A036034 A006950 A106507
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
njas, Dec 31 2003
|
|
|
Search completed in 0.002 seconds
|
