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A106373 Primitive exponents of the Weyl group W(E_6). 4
3, 9, 11, 15, 17, 23 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

C. Chevalley, The Betti numbers of the exceptional Lie groups, pp. 21-24 of Proc. Internat Congress Math., Cambridge 1950, Amer. Math. Soc., 1952.

FORMULA

Equals 2*A005556(n) + 1.

CROSSREFS

Cf. A106374, A106403, A005556, A005763, A005776.

Sequence in context: A116444 A065136 A075720 * A190226 A059326 A028312

Adjacent sequences:  A106370 A106371 A106372 * A106374 A106375 A106376

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), May 30 2005

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Last modified February 16 17:11 EST 2012. Contains 205938 sequences.