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A037241 Molien series for 3-D group X3. 0
1, 1, 7, 16, 46, 92, 197, 346, 616, 989, 1575, 2352, 3483, 4928, 6912, 9390, 12642, 16617, 21676, 27742, 35266, 44164, 54964, 67574, 82631, 100009, 120463, 143858, 171048, 201888, 237369, 277304, 322830 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

REFERENCES

Jaric and Birman, J. Math. Phys. 18 (1977), 1459-1465; 2085.

LINKS

Index entries for Molien series

FORMULA

(1+3*x^2+7*x^3+15*x^4+13*x^5+15*x^6+8*x^7+4*x^8)/(1-x)/(1-x^2)^3/(1-x^3)^2

CROSSREFS

Sequence in context: A024625 A055553 A066009 * A154141 A173661 A152530

Adjacent sequences:  A037238 A037239 A037240 * A037242 A037243 A037244

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

However, the errata (page 2085) may have a correction to this formula, so the sequence may be wrong.

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Last modified February 17 15:44 EST 2012. Contains 206050 sequences.