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A012869 Numerator of [x^(2n+1)] in the Taylor series arccos(cot(x)*arcsinh(x))= x-x^3/15 +4*x^5/75 -2098*x^7/70875 +2969*x^9/141750 -35380322*x^11/2280403125 +... 0

%I

%S 1,-1,4,-2098,2969,-35380322,8716535447,-1798049740063,19914123417989,

%T -181876796289510461,186781215146313235681,-24121633940851905518327,

%U 40268463790986459750095639,-4555735317599779344180767417

%N Numerator of [x^(2n+1)] in the Taylor series arccos(cot(x)*arcsinh(x))= x-x^3/15 +4*x^5/75 -2098*x^7/70875 +2969*x^9/141750 -35380322*x^11/2280403125 +...

%C The inner function is cot(x)*arcsinh(x) = 1-x^2/2 +13*x^4/120 -49*x^6/7210 +79357*x^8/1814400 -344579*x^10/10886400 +..

%K sign,frac

%O 0,3

%A Patrick Demichel (patrick.demichel(AT)hp.com)

%E Values replaced by numerators. - R. J. Mathar, Dec 22 2011

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Last modified July 22 10:03 EDT 2019. Contains 325219 sequences. (Running on oeis4.)