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%I #2 Apr 30 2014 01:28:34
%S -1,2,13,19,29,13,254983,2593,137561,65082637,7254146201,390121079,
%T 1870450393439,109336409527,10204882558837,163634261622076159,
%U 75160931938786203761,31012919260504739,1378721049267804056272181
%N Numerators of coefficients in cosh(x) / sin(x) power series.
%e cosh(x)/sin(x) = -1/x + 2/3*x + 13/90*x^3 + 19/945*x^5 +...
%Y Cf. A097235, A069853. Bisection of A007418.
%K sign,frac
%O -1,2
%A _Ralf Stephan_, Aug 01 2004
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