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Search: id:A008634
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| A008634 |
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Molien series for A_11. |
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+0
2
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| 1, 1, 2, 3, 5, 7, 11, 15, 22, 30, 42, 56, 76, 99, 131, 169, 219, 278, 355, 445, 560, 695, 863, 1060, 1303, 1586, 1930, 2331, 2812, 3370, 4035, 4802, 5708, 6751, 7972, 9373, 11004, 12866, 15021, 17475
(list; graph; listen)
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OFFSET
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0,3
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REFERENCES
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D. J. Benson, Polynomial Invariants of Finite Groups, Cambridge, 1993, p. 105.
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LINKS
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Index entries for Molien series
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FORMULA
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G.f.: (1+x^55)/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)*(1-x^5)*(1-x^6)*(1-x^7)*(1-x^8)*(1-x^9)*(1-x^10)*(1-x^11)).
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MAPLE
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(1+x^55)/(1-x)/(1-x^2)/(1-x^3)/(1-x^4)/(1-x^5)/(1-x^6)/(1-x^7)/(1-x^8)/(1-x^9)/(1-x^10)/(1-x^11)
Conjecture: It appears that the following Maple code produces this sequence: ZL:=[S, {S = Set(Sequence(Z, 1<= card), card <=11)}, unlabelled]: seq(combstruct[count](ZL, size=n), n=0..39); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 19 2008
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CROSSREFS
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Differs from A008640 at 55th term.
Sequence in context: A008633 A035999 A036010 this_sequence A008640 A036011 A104501
Adjacent sequences: A008631 A008632 A008633 this_sequence A008635 A008636 A008637
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KEYWORD
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nonn,easy
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AUTHOR
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njas
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