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 A202602 Denominator of the coefficient of [x^(2n)] of the Taylor series log(cosec(x)*arctanh(x))= x^2/2 +3*x^4/20 +4*x^6/45 +203*x^8/3240 +2038*x^10/42525 +... 1

%I

%S 2,20,45,3240,42525,8292375,1915538625,312615903600,488462349375,

%T 769328200265625,96473756313309375,8682638068197843750,

%U 9086380738369043484375,527010082825404522093750,5081882941530686463046875,33712429605969723121012500000,21652861427859241228317809765625

%N Denominator of the coefficient of [x^(2n)] of the Taylor series log(cosec(x)*arctanh(x))= x^2/2 +3*x^4/20 +4*x^6/45 +203*x^8/3240 +2038*x^10/42525 +...

%Y Cf. A012861 (numerators).

%K nonn,frac

%O 1,1

%A _R. J. Mathar_, Dec 21 2011

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Last modified December 8 01:34 EST 2019. Contains 329850 sequences. (Running on oeis4.)