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A088989 Denominators of coefficients of odd powers of 1/q in the solution series for Tan[x]/x=1. 6

%I

%S 1,3,15,105,315,3465,675675,2027025,241215975,587577375,138881925,

%T 1581170716125,140480936701875,219150261254925,32785574798851875,

%U 106717045970262853125,1424703093055003125,33615869480632798734375

%N Denominators of coefficients of odd powers of 1/q in the solution series for Tan[x]/x=1.

%H Vaclav Kotesovec, <a href="/A088989/b088989.txt">Table of n, a(n) for n = 1..250</a>

%H Vaclav Kotesovec, <a href="http://oeis.org/A079330/a079330.pdf">Asymptotic of the coefficients A079330 / A088989</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TancFunction.html">Tanc Function</a>

%t Last/@Partition[CoefficientList[InverseSeries[Series[x+Cot[x], {x, 0, 50}], q], 1/q], 2]

%Y Numerators are in A079330.

%Y Cf. A224196.

%K frac,nonn

%O 1,2

%A David W. Cantrell (DWCantrell(AT)sigmaxi.net), Nov 01 2003

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Last modified October 27 20:04 EDT 2021. Contains 348289 sequences. (Running on oeis4.)