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Numerators of coefficients in Taylor series expansion of arccosh(cosec(x)*arctanh(x)).
1

%I #8 May 01 2013 21:16:00

%S 1,7,211,87583,1551091,26136390307,26950515152273,1654341031718587,

%T 6818178632103851,5017431660958281659233,191065819328171102145251947,

%U 118321866231849362450533828517,14214423223280744764724946368993,9325196363494467475081247926762363

%N Numerators of coefficients in Taylor series expansion of arccosh(cosec(x)*arctanh(x)).

%e x+7/30*x^3+211/1800*x^5+87583/1134000*x^7+1551091/27216000*x^9+...

%Y Cf. A202384.

%K nonn,frac

%O 0,2

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

%E Corrected by _N. J. A. Sloane_, Dec 21 2011