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%I #7 Feb 26 2018 00:54:30
%S 1,1,1,30,756,75600,7392,54486432000,4358914560,1905468364800,
%T 7602818775552000,6690480522485760000,4616431560515174400000,
%U 226851446883715670016000000,127036810254880775208960000,2210440498434925488635904000000,646080179971122507107008512000000
%N Denominators of expansion of tan(sin(x)) - sin(tan(x)).
%D V. I. Arnold, Huygens and Barrow, Newton and Hooke, Birkhäuser, Basel, 1990.
%e 1/30*x^7 + 29/756*x^9 + 1913/75600*x^11 + O(x^12).
%Y Cf. A045688, A096664, A096671, A096712, A096716.
%K nonn
%O 0,4
%A _N. J. A. Sloane_
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