LINKS
Ray Chandler, <a href="/A266765/b266765_1.txt">Table of n, a(n) for n = 0..1000</a>
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Revision History for A266765
(Bold, blue-underlined text is an addition; faded, red-underlined text is aShowing entries 1-10 | older changes
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LINKS
Ray Chandler, <a href="/A266765/b266765_1.txt">Table of n, a(n) for n = 0..1000</a>
<a href="/index/Rec#order_64">Index entries for linear recurrences with constant coefficients</a>, signature (7, -21, 34, -28, -1, 34, -48, 34, 0, -35, 56, -62, 57, -41, 15, 15, -39, 43, -19, -20, 50, -61, 57, -43, 28, -22, 21, -16, 12, -17, 26, -30, 26, -17, 12, -16, 21, -22, 28, -43, 57, -61, 50, -20, -19, 43, -39, 15, 15, -41, 57, -62, 56, -35, 0, 34, -48, 34, -1, -28, 34, -21, 7, -1).
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FORMULA
The growth series for the affine Coxeter group of type D_k (k >= 3) has Gg.f. = Product_i (1-x^{m_ki+1})/((1-x)*Prod_i (1-x^{m_i})) where the m_i are [1,3,5,...,2k-3,k-1].
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REFERENCES
N. Bourbaki, Groups Groupes et Algèbres de Lie, Chap. 4, 5 and 6, Hermann, Paris, 1968. See Chap. VI, Section 4, Problem 10b, page 231, W_a(t).
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