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A008645 Molien series of 6 X 6 upper triangular matrices over GF( 2 ). +0
3
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, 202, 202, 238, 238, 284, 284, 330, 330, 390, 390, 450, 450, 524, 524, 598, 598 (list; graph; listen)
OFFSET

0,3

REFERENCES

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

LINKS

INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 245

Index entries for Molien series

MAPLE

1/(1-x)/(1-x^2)/(1-x^4)/(1-x^8)/(1-x^16)/(1-x^32)

CROSSREFS

Sequence in context: A023023 A008643 A008644 this_sequence A018819 A127370 A106247

Adjacent sequences: A008642 A008643 A008644 this_sequence A008646 A008647 A008648

KEYWORD

nonn,easy

AUTHOR

njas

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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