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Search: id:A008583
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| A008583 |
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Molien series for Weyl group E_7. |
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+0
1
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| 1, 1, 1, 2, 3, 4, 6, 8, 10, 14, 18, 22, 29, 36, 44, 55, 67, 80, 98, 117, 138, 165, 194, 226, 266, 309, 356, 413, 475, 542, 622, 708, 802, 911, 1029, 1157, 1304, 1462, 1633, 1827, 2036, 2261, 2514, 2785
(list; graph; listen)
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OFFSET
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0,4
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REFERENCES
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Coxeter and Moser, Gens. and Relations for Discrete Grps, Table 10.
L. Smith, Polynomial Invariants of Finite Groups, Peters, 1995, p. 199 (No. 36).
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LINKS
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T. D. Noe, Table of n, a(n) for n=0..1000
INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 250
Index entries for Molien series
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MAPLE
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1/((1-x^2)*(1-x^6)*(1-x^8)*(1-x^10)*(1-x^12)*(1-x^14)*(1-x^18));
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PROGRAM
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(MAGMA) MolienSeries(CoxeterGroup("E7")); - from Sergei Haller (sergei(AT)sergei-haller.de), Dec 21 2006
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CROSSREFS
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Sequence in context: A028290 A003107 A014977 this_sequence A053253 A095913 A102848
Adjacent sequences: A008580 A008581 A008582 this_sequence A008584 A008585 A008586
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KEYWORD
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nonn,easy,nice
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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