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A008644 Molien series of 5 X 5 upper triangular matrices over GF( 2 ). 0
1, 1, 2, 2, 4, 4, 6, 6, 10, 10, 14, 14, 20, 20, 26, 26, 36, 36, 46, 46, 60, 60, 74, 74, 94, 94, 114, 114, 140, 140, 166, 166, 201, 201, 236, 236, 280, 280, 324, 324, 380, 380, 436, 436, 504, 504, 572, 572 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

REFERENCES

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

LINKS

INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 243

Index entries for Molien series

MAPLE

1/(1-x)/(1-x^2)/(1-x^4)/(1-x^8)/(1-x^16)

CROSSREFS

Sequence in context: A023023 A184157 A008643 * A008645 A018819 A127370

Adjacent sequences:  A008641 A008642 A008643 * A008645 A008646 A008647

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 11:54 EST 2012. Contains 205778 sequences.