A106374 Primitive exponents of the Weyl group W(E_7).

3, 11, 15, 19, 23, 27, 35

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.

Links

Table of n, a(n) for n=1..7.

Formula

Equals 2*A005763(n) + 1.

Crossrefs

Cf. A106373, A106403, A005556, A005763, A005776.

Sequence in context: A056247 A039275 A044971 * A075330 A131323 A050592

Adjacent sequences: A106371 A106372 A106373 * A106375 A106376 A106377

Keyword

nonn,fini,full

Author

N. J. A. Sloane, May 30 2005

Status

approved