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A005776
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Exponents m_i associated with Weyl group W(E_8).
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15
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OFFSET
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1,2
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COMMENTS
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Numbers coprime to 30 in that number's reduced residue system. - Alonso del Arte, Oct 03 2017
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REFERENCES
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H. S. M. Coxeter and W. O. J. Moser, Generators and Relations for Discrete Groups, 4th ed., Springer-Verlag, NY, reprinted 1984, p. 141.
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LINKS
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MATHEMATICA
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PROG
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(Magma) Exponents(RootDatum("E8")); // Sergei Haller (sergei(AT)sergei-haller.de), Dec 21 2006
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CROSSREFS
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KEYWORD
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nonn,fini,full
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AUTHOR
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STATUS
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approved
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